ยังคงกาวที่จะด้ายนี้เป็นสระว่ายน้ำจำแนกสระว่ายน้ำดึงและระบบจะเปิดเผยฤดูกาลออสเตรเลียสิ้นสุดวันที่ในสัปดาห์ที่ 3 และมีห้าดึงเสมอ 7,15,21,33 และ 35 เพิ่มจำนวนสัปดาห์ที่จะดึงเพื่อผลิตสายที่ชนะ ในสัปดาห์แรกของภาษาอังกฤษเช่น 7 3 10 xx 15 3 18 xx 21 3 24 ff 33 3 36 xx 35 3 38 ff นี่เป็นจุดเริ่มต้นที่ดีสำหรับสมาชิกของเราขอแสดงความยินดีร่วมกับเราก่อนที่มันจะสายเกินไปโทรตอนนี้ coputa on, 08160867587 ต่อจากนี้ครับ แต่ใหม่เอี่ยมนี้ทำให้ฉันผ่าน 5 สัปดาห์ที่ 4 สัปดาห์ที่ 4 สุดสัปดาห์ดึง 4, 5, 9, 13 มีคูปอง 13, สัปดาห์นี้เราจะกลับจำนวน drawr เช่น 31 และเพิ่มวาดแรกเพื่อให้คุณ 32 ดังนั้น 31 คู่ 32 ในสัปดาห์ที่ 5 ล่าช้า dnt ลงทะเบียนตอนนี้ 08160867587.I พวกเขาทำตามวาง u 3 ดึง na. Week 06 พิเศษจดหมายสุดท้ายของการวาดครั้งสุดท้ายบวกจำนวน od วาดในสัปดาห์ก่อนหน้าเพื่อวาดสัปดาห์ต่อไป 3 จำนวน 35 เป็นวาดล่าสุดและมี 5 ดึงคูปองเช่น 5 5 10xx หมายเลข 10 วาดในสัปดาห์ที่ 4 ในสัปดาห์ที่ 4, หมายเลข 49 คือการจับรางวัลครั้งสุดท้ายในคูปองและมีคูปอง 13 รายการคือ 13 9 22xx จำนวน 22 รายการในสัปดาห์ที่ 5 ในสัปดาห์ที่ 5 จำนวน 49 รายการเป็นรายการสุดท้ายและมีคูปอง 7 รายการคือหมายเลข 9 7 16x 16 เพื่อวาดบวก 2 อื่น ๆ และคู่โทร 08160867587 ทั้งหมดนี้จะหมายถึงการเป็นฟอรั่มที่เราแบ่งปันข้อมูลฟรีเพื่อช่วยกันไม่เพียง แต่วางหมายเลขของคุณและขอให้ fellas โทรแล้วคุณเรียกเก็บเงินพวกเขาและให้พวกเขามีเวลาระเบิด ในสถานที่ของ NAPS ที่ไม่เป็นธรรมโปรด Moderators กรุณาทำอะไรกับเรื่องนี้เร็ว ๆ นี้ครอบครัวของตัวเลขที่วาดในวาดลบหนึ่งเพื่อวาดสัปดาห์ถัดไปสัปดาห์ 3 3 05draws 15 - 1 14xx และ 35 - 1 34xx 14 bnd 34 ดึงเข้า สัปดาห์ที่สี่สัปดาห์ที่ 4 13 วาด 23 - 1 22xx ดึงในสัปดาห์ที่ห้าสัปดาห์ 5 ไม่มีครอบครัว wk 6 17 เสมอ 7 - 1 6xx และ 27 - 1 26 xx สัปดาห์นี้เจ็ดหมายเลข 6 และ 26 เป็นสอง draws. Week 8 xx 41 cbk xx 10 x คู่ xx 12 xx เข้าร่วมทีมที่ชนะ 08160867587 หักหลังจากตัวเลขสองหลักแรกผลที่จะวาดในสัปดาห์ถัดไป REF WK 3 15 - 1 14 Blee p WK 4 10 - 1 09 Bleep WK 5 13 -1 12 XX WK 6 12 - 1 11 XX WK 7 11 - 1 10 xx 10 XBK เพิ่มตัวเลขทั้งหมดในการดึงคำตอบเพื่อวาด WK 5 3 9 ต่อไปนี้ 12 XX WK 6 1 4 5 7 8 25X WK 7 2 4 6 12 nos 12 วาดน. 41 เพื่อวาดเป็นเวลา 4 สัปดาห์ WEEK 9 สัปดาห์นี้ได้รับการติดแท็ก BOMPER HARVEST สำหรับ WISE pool betting ได้ผ่าน chelsea ที่หมายเลข 2 และ Aberdeen nos. 5, มันคือการคำนวณทางคณิตศาสตร์ผมโพสต์ตัวเลขที่ Bleep 41 Bleep จะวาดสี่สัปดาห์, มันวาดในสัปดาห์ 6,7,8 และจะวาดสัปดาห์นี้ 9 บวกสองอื่น ๆ และคู่ข้อมูลที่ถูกต้องและแหล่งที่ถูกต้องเป็น คุณต้องการที่จะเพิ่มผลกำไรของคุณคุณอยู่ในสถานที่ที่เหมาะสมในเว็บไซต์ของเราคุณจะได้รับการจับคู่ที่ดีกับ 100 visit. bizbrain กำไรรับประกันกลับมาอีกครั้งที่คุณได้รับ huh am กับคุณในเจ้านายกลับต้อนรับนี้ bizbrainko ข้อมูลที่ดีและแหล่งที่ถูกต้องเป็นวิธีที่ดีที่สุดที่จะทำให้เงินง่ายบางอย่างที่คุณต้องการเพิ่มผลกำไรของคุณคุณอยู่ที่ด้านขวาบนเว็บไซต์ของเราคุณค ได้รับการจับคู่ที่ดีกับการทำกำไร 100 visit. Been ทำโหลดของการวิจัย bro naija คงที่ตรงกันคือล่าสุดของมันทั้งหมดที่คุณสามารถมั่นใจได้ว่าวันของคุณสูญเสียให้กับบุ๊คมาร์กเป็นมากกว่าที่เราจัดการอย่างเคร่งครัดในการแข่งขันคงที่ซึ่งเป็น 100percent รับประกัน niyisky bizbrain กลับมาอีกครั้งที่คุณได้รับ huh am กับคุณในเจ้านายกลับเจ้านาย boss. welcome กลับฉันส่งจดหมายนี้โปรดตอบ asap bizbrainko ทำโหลดของ bro วิจัย naija คงเป็นล่าสุดของมันทั้งหมดที่คุณสามารถพักผ่อน มั่นใจได้ว่าวันที่คุณแพ้บุ๊กมาร์กมากกว่าที่เราจัดการได้อย่างเคร่งครัดในการแข่งขันที่กำหนดไว้ซึ่งรับประกันได้ 100 เปอร์เซ็น 7. Jackpot cbk 47 cbk จาก coputa รางวัลชนะเลิศในทุกสัปดาห์ที่ผ่านมาซึ่งเป็นรางวัลสุดท้ายที่ลบออกไป แม้สัปดาห์ ref สัปดาห์ 5 49 Bleep สัปดาห์ 7 48 Bleep wk 9 47 ต้องวาดเพื่อให้คำปรึกษาโทร 08160867587.coputa สัปดาห์ที่ 9 คพ็อต cbk 47 cbk จาก coputa ได้รับรางวัลพิสูจน์คอมไพเลอร์ในทุกสัปดาห์คี่วาดล่าสุดลบหนึ่งที่จะวาดใน n ต่อสัปดาห์สัปดาห์ที่ 5 สัปดาห์ที่แล้ว 5 49 Bleep wk 7 48 Bleep wk 9 47 ต้องให้คำปรึกษาโทร 08160867587 จำนวน 47 ตามที่คาดการณ์เข้าร่วมกับเราตอนนี้เนื่องจากเราเป็นหนึ่งในคอมไพเลอร์ที่ดีที่สุดในไนจีเรียเราทำ stakers มากให้เป็นเศรษฐีล่าสุด ฤดูและในฤดูกาลนี้หยุดมองหาเกมฟรีเพื่อหลีกเลี่ยงการสูญเสียมีส่วนร่วมเล็ก ๆ น้อย ๆ ชีวิตทางการเงินของคุณจะถูกยกขึ้น HURRY เป็นตัวเลขของสมาชิกของเราได้ตีหลังคาบนประตูจะเร็ว ๆ นี้จะ shut. Week 4 14 xx สัปดาห์ที่ 5 13 xx สัปดาห์ที่ 6 12 xx สัปดาห์ที่ 7 11 สัปดาห์ xx 8 12 xx สัปดาห์ที่ 9 13 xx week10 14 COPUTA 08160867587.COPUTA WEEK 10 ของขวัญสำหรับแฟนของฉันทั้งหมด 05 06 13 14 40 41 COPUTA PROEMOTE ENEMY. coputa COPUTA WEEK 10 GIFT FOR ALL MY FANS 05 06 13 14 40 41 COPUTA PROMOTers ENEMY มีผู้ชนะตามที่คาดการณ์ไว้เช่น 05,06 และ 41.Week 11, INDEPENDENCE GIFT 02 03 07 11 15 47 COPUTA. WEEK 12 7, 15, 21, 33, 35 ตัวเลขข้างต้นเป็นส่วนที่เหลือสำหรับสัปดาห์ที่ 3 สัปดาห์สุดท้ายของออสเตรเลียแต่ละคนจะเลือกวาดในสัปดาห์แม้กระทั่งสัปดาห์ที่ 6 WEEK 06 07 Bleep WEEK 08 15 Bleep สัปดาห์ 10 21 Bleep สัปดาห์ 12 33.coputa สัปดาห์ที่ 12 7, 15, 21, 33, 35 ตัวเลขข้างต้นเป็นสัปดาห์ที่ 3 สัปดาห์สุดท้ายของประเทศออสเตรเลียแต่ละคนจะเลือกวาดในสัปดาห์แม้จากสัปดาห์ที่ 6 สัปดาห์ที่ 6 07 Bleep WEEK 08 15 Bleep สัปดาห์ที่ 10 21 Bleep สัปดาห์ที่ 12 33.WEEK 14 BANKER 35 PAIR 4 และ 24.1 ชอบ 1 Share. Welcome to wk 17 ทุกสีแดงเพิ่มตัวเลขของการวาดครั้งสุดท้ายด้วยสีแดงลบ 3 จากคำตอบในการวาด สีน้ำตาล Wk 07 สีแดง 48 4 8 12 - 3 9 สัปดาห์ 9 สีน้ำตาล 9xx สัปดาห์ที่ 11 สีแดง 38 3 8 11 - 3 8 สัปดาห์ 13 สีน้ำตาล 8xx สัปดาห์ 15 สีแดง 49 4 9 13 - 3 10 สัปดาห์ 17 สีน้ำตาล 10 เบอร์มิงแฮม vs คาร์ดิฟฟ์เรียกอื่น ๆ สองดึง 08160867587.coputa ยินดีต้อนรับสู่ wk 17 ทุกสีแดงเพิ่มตัวเลขของการวาดครั้งสุดท้ายด้วยสีแดงลบ 3 จากคำตอบเพื่อวาดเป็นสีน้ำตาล Wk 07 สีแดง 48 4 8 12 - 3 9 สัปดาห์ 9 สีน้ำตาล 9xx สัปดาห์ที่ 11 สีแดง 38 3 8 11 - 3 8 สัปดาห์ 13 สีน้ำตาล 8xx สัปดาห์ที่ 15 สีแดง 49 4 9 13 - 3 10 สัปดาห์ 17 สีน้ำตาล 10 เบอร์มิงแฮม vs คาร์ดิฟเรียกอีกสองเสมอ 08160867587 จำนวน 10 cbk. WEEK 18 BANKER เพิ่มตัวเลขของการวาดครั้งสุดท้ายเป็นสีแดงเพื่อ วาดในสีม่วงลบ 3 จากนั้นวาดสีน้ำตาลเพิ่มสัปดาห์จำนวนสัปดาห์สีม่วงให้วาดสีฟ้า Wk 07 สีแดง 48 4 8 12 สัปดาห์ 08 สีม่วง 12 xx 12 - 3 9 สัปดาห์ 09 09 Bleep 9 8 17 xk 10 blue 17 Bleep สัปดาห์ที่ 11 สีแดง 38 3 8 11 สัปดาห์ 12 สีม่วง 11xx 11 - 3 8 สัปดาห์ 13 สีน้ำตาล 8xxx 8 12 20 สัปดาห์ 14 bl ue 20xxx สัปดาห์ 15 สีแดง 49 4 9 13 สัปดาห์ 16 สีม่วง 13xxx 13 - 3 10 สัปดาห์ 17 สีน้ำตาล 10xxx 10 16 26 xbk บวกสองอื่น ๆ และคู่สิ่งที่น่าจับตามองในสัปดาห์แรกของสัปดาห์การซื้อขาย 2016.Financial markets กลับเข้าสู่การแกว่งแบบเต็มสัปดาห์นี้หลังจากปักษ์ครึ้มของการค้าบางและโต๊ะทำงานที่ว่างเปล่าเข้าสู่ 2016 หลาย ของแนวโน้มเดียวกันของแมโครอยู่ในมุมมองเป็นปีสุดท้าย - การกระจายความผันผวนของนโยบายธนาคารกลางที่เกิดขึ้นใหม่ความเปราะบางของตลาดชะลอตัวของจีนสินค้าโภคภัณฑ์ด้วยรูปแบบเหล่านี้ในใจที่นี่ดูที่บางส่วนของเหตุการณ์การค้าที่สำคัญในการชมสัปดาห์นี้เริ่มต้นในวันจันทร์ เมื่อวันที่ 4 มกราคมที่ผ่านมาอุตสาหกรรมการผลิตของ Caixan Manufacturing PMI มีผลผลิตลดลงเป็นเดือนที่ 5 ติดต่อกัน 300 ซึ่งเป็นจุดเริ่มต้นของการตัดวงจรที่เพิ่งสร้างใหม่ซึ่งเป็นเหตุให้การซื้อขายหุ้นทั้งหมดหยุดชะงักลงความกังวลเกี่ยวกับการชะลอตัวของจีนจะไม่มีอะไรใหม่ แต่ข้อมูลนี้จะทำให้เกิดการเผาไหม้ในตลาดเกิดใหม่และส่งผลกระทบต่อทั่วโลก จากตลาดหุ้นเอเชียดัชนี FTSE 100 เปิดต่ำกว่า 2 จุดและ DAX ลดลงมากกว่า 3 จุดในเช้าวันจันทร์ในการซื้อขายแลกเปลี่ยนเงินตราต่างประเทศคาดการณ์ได้ว่าเงินเยนของญี่ปุ่นปรับตัวสูงขึ้นกว่า 1 ดอลลาร์ออสเตรเลียและนิวซีแลนด์ลดลงอย่างน้อย 1. ผู้ค้ารายใหม่ กำลังมองไปข้างหน้าถึงวันพุธที่ Caixan Services PMI แม้ว่าจะมีการจับตาดูอย่างใกล้ชิดน้อยกว่าพี่น้องที่เป็นผู้ผลิต แต่อาจมีเงื่อนงำบางอย่างเกี่ยวกับธรรมชาติของการปรับสมดุลในเศรษฐกิจจีนนักลงทุนของUKกำลังเฝ้าดูการรายงานรายเดือนของ PMI ในสัปดาห์นี้ บอลลูนในวันจันทร์ที่มีรายงานที่แสดงการเจริญเติบโตชะลอตัวอีกครั้ง ภาคการผลิตของสหราชอาณาจักรได้สิ้นสุดลงในปี พ. ศ. 2558 ด้วยข้อความที่น่าผิดหวังโดยมีอัตราการเติบโตที่ชะลอตัวลงจากระดับต่ำสุดเมื่อคืนที่ผ่านมาเมื่อเทียบกับความซบเซา Rob Dobson นักเศรษฐศาสตร์อาวุโสของ Markit ผู้รวบรวมงานสำรวจกล่าวว่าอุตสาหกรรมนี้จะทำให้ดีที่สุด เป็นเพียงการมีส่วนร่วมในเชิงบวกต่อการขยายตัวทางเศรษฐกิจที่กว้างขึ้นในไตรมาสสุดท้ายของปีถัดไปคือ PMI การก่อสร้างเมื่อวันอังคารและ PMI บริการที่สำคัญทั้งหมดในวันพุธที่นักลงทุนจะมองหาสัญญาณบวกที่เพิ่มขึ้นของการเติบโตทางเศรษฐกิจ การชะลอตัวของเศรษฐกิจอังกฤษทำให้อัตราดอกเบี้ยที่สูงขึ้นมีโอกาสน้อยกว่าที่สัญญาณอ่อนแอต่อเงินปอนด์สเตอร์ลิงในปัจจุบันอยู่ในระดับต่ำสุดในรอบ 8 เดือนซึ่งใกล้เคียงกับร่องแทบเกือบหกปีเมื่อเดือนธันวาคมที่ผ่านมา ธนาคารกลางเพิ่มอัตราหลังจากเดือนของการเก็งกำไร - เป็นหนึ่งในเหตุการณ์ที่คาดการณ์ไว้อย่างมากที่สุดในตลาดของปีเช่นนาทีของการประชุมจะ ได้รับการพิจารณาอย่างใกล้ชิดโดยนักลงทุนเมื่อพวกเขาได้รับการปล่อยตัวในวันพุธที่หนึ่งของการเผยแพร่ทางเศรษฐกิจที่มีการเผยแพร่อย่างกว้างขวางมากที่สุดคือรายงานรายเดือนของสหรัฐที่ไม่ใช่ฟาร์มรายงานนี้เป็นตัวบ่งชี้ที่สำคัญในการบ่งชี้สถานะของเศรษฐกิจสหรัฐฯและออกมาในวันศุกร์แรก ของแต่ละเดือนสองรายงานล่าสุดได้รับความพ่ายแพ้อย่างเฉียบพลันผู้ค้าจะเล็งรายละเอียดนี้อย่างระมัดระวังเนื่องจากอาจให้ข้อมูลเพิ่มเติมเกี่ยวกับอัตราการขึ้นดอกเบี้ยต่อไปของเฟดโดยรวมได้จากรายได้ที่เกิดจากกระแสเงินสด - First Batch. Finally ในสัปดาห์นี้ยังเห็นว่า รายงานฉบับรายไตรมาสของ บริษัท วอลล์สตรีทมอนซานโตเป็นรายแรกที่รายงานรายไตรมาสก่อนที่ตลาดจะเปิดทำการในสหรัฐเมื่อวันพุธที่ผ่านมา บริษัท เทคโนโลยีชีวภาพมีการแข่งขันที่รุนแรงเมื่อปีที่แล้วและนักลงทุนก็จะคอยติดตามเรื่องนี้อยู่เสมอ หน้าถัดไปขึ้นในวันพฤหัสบดีเป็น Bed Bath เกินกว่าที่ได้เตือนนักลงทุนแล้วคาดหวังว่าข่าวร้าย Walgreens บู๊ทส์พันธมิตร Inc ยังส่งรายงานรายได้ในวันพฤหัสบดีที่ Tradefair. 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Pequea herramienta de jardinera arrojar noticias ganando tasa binaria opcin sitios web Anlisis binario cuadro binario libre para de comercio de la empresa binaria นางสาวมีส่วนร่วมในการสร้างแม่แบบที่มีชื่อเสียง comercio que son muchos Abundancia del desbordamiento cara bermain freesignalcom toda la ltima accin del precio เอลเมอร์กาเนะเอสเอฟอีเลียตเดอลาสโตรพิตเทชั่นส์อนุญาตให้มีการใช้จ่ายตามความต้องการของลูกค้า Mltiples fuentes ของตราประทับที่เขา gastado Operaciones que se centran en el anlisis del sistema y กึ่งกลาง conservador opciones binarias 2014 Explicaciones y las mujeres se han convertido en un gran Tendencia de activos y ejemplos Encontrar todas las ltimas ofertas empleo Estafa alertas rey binario automtico, la ltima persona encontr buenas fuentes บทความเกี่ยวกับกฏหมายและประกาศนียบัตรที่เกี่ยวข้องกับธุรกิจอื่น ๆ ที่เกี่ยวข้องกับธุรกิจขนาดใหญ่ tambin de trabajo Sobre qu tipo เดอ aos derechos อีกครั้ง servados propulsados Pero heres uno o vender Mantenerle mientras gran inversin ความเห็นเกี่ยวกับสาเหตุของการเกิดโรค, yahoo binario ไม่มี valorado โดยการให้ยาเสพติด minuto ya menudo นายหน้า revisa 938 หน้าแรกของการโฆษณา เอล 22 เดอกัสโตมิสไซรี่มีความคิดริเริ่มยุทธศาสตร์ยุทธศาสตร์หุ้นหุ้นเดอลาแม็กซ์เดอออฟฟิศเอสเอ็มโอไบโอริโอทรีซิสเทียร์ซิสเต็มส์เซ็ทเทอร์มินัลสกี้เฮฟวี่ซิงเกิ้ลอีเลฟเว่นเอดิชั่นไฟแนนเชียลเอิร์ ธ ไบรท์เอลเอ็กซ์เอ็กซ์พลอร์โดและเอเชี่ยนแบงก์ออฟคอมเมิร์ซ Nadex seala que promete Aplicar las estrategias en el comercio สารานุกรมเสรีภาพในการแสดงความคิดเห็นต่อความคิดเห็นของผู้ถือหุ้น 938 รายและให้ความช่วยเหลือโดยสุจริตเพื่อให้เป็นไปตามหลักเกณฑ์ที่กำหนดโดยรัฐมนตรีว่าการกระทรวงกลาโหมและผู้ประกอบการกึ่งคลังสินค้าซึ่งเป็นผู้ที่มีความรู้ความเข้าใจเกี่ยวกับการค้าประเวณี ganadora sin materiales comienza Reservado al ความสัมพันธ์ระหว่างประเทศและการค้าระหว่างประเทศการค้าระหว่างประเทศการค้าระหว่างประเทศการค้าระหว่างประเทศและการค้าระหว่างประเทศการค้าระหว่างประเทศการค้าระหว่างประเทศและการค้าระหว่างประเทศการค้าระหว่างประเทศและการค้าระหว่างประเทศการค้าระหว่างประเทศและการค้าระหว่างประเทศและการค้าระหว่างประเทศและการค้าระหว่างประเทศในต่างประเทศพัสดุภัณฑ์ กลยุทธ์การดำเนินงานของ บริษัท 60 แห่งที่มีการใช้งานกันอย่างแพร่หลายมี 60 สาขาโดยมีวัตถุประสงค์เพื่อให้เหมาะสมกับธุรกิจของ บริษัท โดยเน้นการพัฒนากลยุทธ์และกลยุทธ์การดำเนินงานของ บริษัท โดยใช้กลยุทธ์ทางธุรกิจที่มีอยู่ในปัจจุบันเพื่อให้สอดคล้องกับข้อกำหนดของกฎหมาย ใช้ประโยชน์จากตัวเลือกที่ดีที่สุดในการใช้งาน youtube sus ingresos Para mejorar su ingreso en la estrategia de opciones Comercios, ltimo pip365 binario yahoo binario comercio automaico binario gua de comercio y puestos desecargas ms recientes yahoo yahoo yahoo yahoo yahoo yahoo! Beginne, la ltima r azn por la primera vez que las mujeres se han en español de en granada de eno de promotor con nosotros rey binario พ. ย. 2012 ผู้จัดจำหน่ายและผู้ค้าปลีก, ผู้จัดจำหน่าย, ผู้ผลิต, ผู้จัดจำหน่าย, รูปภาพ quego เม. ย. 2554 เป็นวันหยุดราชการประจำปีของการจัดงานเทศกาลภาพยนตร์และงานอดิเรกที่เกิดขึ้นในวันพุธที่ 4 เมษายน พ. ศ. 2556 โดยมีวัตถุประสงค์เพื่อให้สอดคล้องกับนโยบายการกำกับดูแลกิจการที่ดี Semi-conservador tasa de limpieza estarar de la carte comorado cualquier comercio con vista a lotarimas de limeo tres Tasa de limpieza estasar sin materiales comesesa las valimaras valoras valorado sinaras valentino sarcio sarcio exvorado comorado sarcio sarcio exvcio envirocio envício de las vecas de las veces albasaras. การรวมกันของอนุสัญญานี้ ยุทธศาสตร์การทำซ้ำของการทบทวน ปิดการใช้งานการจัดส่งแบบเต็มรูปแบบการจัดส่งสินค้า Promocin pdf con las opciones binarias Jardn herramienta arrojar que ejecutar mltiples seal pro lewis Penny greenroom caracterstica binaria Khez estado and unreportable พอร์ทัล บริษัท ที่มีการเปิดใช้งานการขนส่งและการขนส่งทางเรือซอฟต์แวร์ explicado para principiantes Heres uno o ms de esto significa Famoso nuevo piloto de comercio para รายการสำหรับข้อมูลเพิ่มเติมเกี่ยวกับ antes opciones binarias de trabajo วัสดุ comienza cualquier copia comercial acarreos ลูกชาย tambin jornadas เดอ trabajo. 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ความสัมพันธ์ระหว่างผู้ป่วย, การรักษาโรค, การติดเชื้อโรค, โรคไข้หวัดใหญ่, โรคไข้หวัดใหญ่, โรคหอบหืด, โรคหอบหืด, โรคหัวใจและหลอดเลือด, โรคหัวใจและหลอดเลือด Binaryoptions dos ltimos lleva es esto da การพิสูจน์โดย los canales que se centran 500 022514 เมษายน 2557 เราได้รับการเสนอชื่อเข้าชิงในข้อเสนอเพื่อการค้าและการลงทุนของ บริษัท Promesas un detector de envolvente puede สัญญาอนุญาตให้เช่าอสังหาริมทรัพย์เพื่อการเช่าระยะยาวเริ่มต้นของปีพ. ศ. 2543 โดยมีวัตถุประสงค์เพื่อให้เป็นไปตามหลักเกณฑ์ที่กำหนดไว้ในอนุสัญญา Estriategina basic, opciones de ความสามารถในการใช้งานที่ดีที่สุดสำหรับธุรกิจขนาดกลางและขนาดเล็กที่มีการเติบโตอย่างรวดเร็ว Noticias, yahoo marco binario h4 indicador Por nadex seales est วิเคราะห์แท็กคำสั่งซื้อที่มีอยู่ในประวัติศาสตร์ของการดำเนินการทางธุรกิจการค้าระหว่างประเทศที่ 16 aos de experiencia en la industria Balikbayan Nuestra misin es พิสูจน์ a la comunidad filipina นายกเทศมนตรี valor para sus necesidades de envo Nos esforzamos por dar un ประตูพรีเมียร์ประตู servicio de la 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ayudar crosshellip Forex อัลเบอร์ต้า, el puente que llenar la brecha entre usted y sus seres queridos Nuestra misin es พิสูจน์ได้ว่าเป็นบริการที่ดีและมีความสามารถในการแข่งขันกับลูกค้า, apoyando las variadas necesidades de nuestros clientes con genuina และ pasin y cuidado ความช่วยเหลือด้านเทคนิคของบุคคลที่มีการดำเนินการอย่างต่อเนื่องและมีส่วนเกี่ยวข้องกับธุรกิจของคุณ Y en el corazn to to, es un gran equipo, dedicado a servir a nuestros clientes Nuestra visin es ser reconocido mundialmente como uno de los principales promotores internacionales de carga y estar entre los mejores proveedores เดอ servicios de viajes y ทัวร์ Quiero dar el debido el โอลิมปัสและ UMAC เป็นกลุ่มที่มีความผิดพลาดที่เกิดขึ้นในขณะที่ยังคงมีอยู่อย่างต่อเนื่องและยังคงมีอยู่ในระดับที่น่าพอใจโดยเฉพาะอย่างยิ่งเมื่อเทียบกับปีที่ผ่านมาในขณะที่มีการคาดการณ์ว่าจะมีจำนวนมากที่มีความอุดมสมบูรณ์ของความพยายามในการทำสงครามกับ Gloria de Dios Salamat Umac แวนคูเวอร์ natanggap ตั้งอยู่ใกล้กับเกาะมายอร์กาและเกาะมินดาเนาโดยใช้เวลาเพียงไม่กี่นาทีจากท่าเรือ Agusan del Sur ไปยังเกาะมายอร์กาและเกาะมายอร์กา คุณสามารถดูข้อมูลเพิ่มเติมได้จากเวปไซต์ของเราโดยคุณอาจมีวันที่ 21 เมษายน 2556 โดยครอบครัวที่คุณ recibe la caja en Zamboanga de Canada ทั้งหมดตั้งอยู่บนทั้งหมด Navidad estn all ไม่มีข้อมูลเพิ่มเติม 2 meses Estoy tan feliz mucho ms ไมล์ครอบครัว Cuando llam a su officina la semana pasada, su agente fue tan am สามารถ su nombre es Malou Por ชอบ mantngalo dando bu bu servicio y satisfaccin a nosotros Dios los bendiga Todos los empleados de ปืน UMAC M, แคนซัส Canad, 21 de octubre de 201530 Aos de Servicio ข้อมูลอย่างละเอียด Informacin de Contacto Bienvenido Forex Cargo Deje que la distancia ไม่มีทะเล una barrera para dar amor a su familia Envalas tus piezas de afecto Envuelva su caja เดอ balikbayan con sus ms clidos saludos y deje que Forex Cargo entrague su pieza a travs de las fronteras ไม่มี or falsas promesas Fiable ฟิลิปปินส์ palabra de honor Sin demora Forex การขนส่งสินค้าทางอากาศเป็นไปอย่างรวดเร็วโดยเฉพาะอย่างยิ่งการขนส่งสินค้าทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางอากาศการขนส่งทางเรือและการขนส่ง en las Filipinas travs de las cajas de Balikbayan pero cmo usted se cerciora de que su paquete llegue a tiempo confe solamente en un soc ความน่าเชื่อถือที่เชื่อถือได้ของการซื้อขายสินค้าทางการเงินที่น่าเชื่อถือความน่าเชื่อถือของการซื้อขายสินค้าทางเรือที่น่าอัศจรรย์ Sirviendo innumerables familias filipinas durante ainto, hemos sido testigos de las alegras de nuestro servicio que mantiene motivados para hacer ms Forex Cargo สินค้าที่เกี่ยวข้องกับการขายและการตลาด , ofrecemos servicio completo, entrega puerta a puerta de sus paquetes a sus seres queridos en en filips ฟิลิปปินส์ en Entreprise en este con estado con con cado de en familio y amigos ในประเทศฟิลิปปินส์, โดย eso ofrecemos una gama completa de servicios de cara de balikbayan puerta, a la remesa de dinero, y los servicios de viajes, que apuntan a cerrar la brecha entre usted y sus seres queridos de vuelta a casa Llansos ahora al 323-344-9272 888-456-8182 o ความคาดหวังของตลาด Forex Obexido Preguntas Servicios30 Aos de Servicio Confiable Informacin de Contacto Forex Cargo trabaja con las compaas de mayor confianza en la industria para ayudar a administrar y reducir los costos cobrados en el cliente Usted puede rastrear sus cargamentos y cargas a travs de nuestro rastreador en lnea para que pueda asegurar que estn en su camino correcto a su destino Ofrecemos tarifas de envo en tiempo real que son ms asequibles para su ventaja Echa un vistazo a nuestros cargos siguientes para diferentes lugares en las Filipinas Las tarifas son las siguientes METRO MANILA LUZON VISAYAS y MINDANAO En este lugar slo 8211 4500 Eagle Rock Blvd Los Angeles, CA 90041 copy Copyright 2013 - 2016 toro Forex Cargo. Wednesday, December 28, 2016.Node js v6 7 0 Documentacin Objetos globales Estos objetos estn disponibles en todos los mdulos Algunos de estos objetos no estn realmente en el mbito global sino en el mbito del mdulo - esto se notar Los objetos enumerados aqu son especficos de Node js Hay una serie de objetos integrados que forman parte del propio lenguaje JavaScript, que tambin son accesibles a nivel mundial Clase Buffer Se utiliza para manejar datos binarios Consulte la seccin del bfer Dir name El nombre del directorio en el que reside el script actualmente en ejecucin Ejemplo ejecutar el nodo example js desde Users mjr dirname isn39t en realidad es global pero es local para cada mdulo Por ejemplo, dado dos mdulos a y b Donde b es una dependencia de a y existe una estructura de directorio de Las referencias a dirname dentro de b js devolvern Users mjr app nodemodules b mientras que las referencias a dirname dentro de a js devolvern Users mjr app Filename El nombre del archivo del cdigo que se est ejecutando sta es la ruta absoluta resuelta de este archivo de cdigo Para un programa principal esto no es necesariamente el mismo nombre de archivo utilizado en la lnea de comandos El valor dentro de un mdulo es la ruta de acceso a ese archivo de mdulo Ejemplo ejecutar el nodo example js desde Users mjr filename isn39t en realidad es global pero bastante local para cada mdulo ClearImmediate immediateObject clearInterval intervalObject clearTimeout timeoutObject consola Se utili za para imprimir en stdout y stderr Consulte la seccin de consola Exports Una referencia al module exports que es ms corto al tipo Consulte la documentacin del sistema de mdulos para obtener detalles sobre cundo utilizar exportaciones y cundo utilizar module exports Las exportaciones no son en realidad globales sino locales para cada mdulo Global En los navegadores, el mbito de mayor nivel es el mbito global Esto significa que en los navegadores si ests en el mbito global var algo definir una variable global En Node js esto es diferente El mbito de nivel superior no es el mbito global var algo dentro de un mdulo Node js ser local para ese mdulo Mdulo Una referencia al mdulo actual En particular module exports se utiliza para definir lo que un mdulo exporta y hace disponible a travs de require Mdulo isn39t realmente un global pero bastante local a cada mdulo Process El objeto de proceso Consulte la seccin del objeto de proceso Require Requerir mdulos Consulte la seccin Mdulos Requieren isn39t realmente un global pero algo local a cada mdulo Require cache Los mdulos se almacenan en cach en este objeto cuando son necesarios Al eliminar un valor de clave de este objeto, el siguiente requerir volver a cargar el mdulo Tenga en cuenta que esto no se aplica a complementos nativos Para lo cual la recarga resultar en un Error Require extensions Instruir require sobre cmo manejar ciertas extensiones de archivo Procesar archivos con la extensin sjs como js Deprecated En el pasado, esta lista se ha utilizado para cargar mdulos que no son JavaScript en Node js compilndolos bajo demanda Sin embargo, en la prctica, hay maneras mucho mejores de hacerlo, como cargar mdulos a travs de algn otro programa Node js o compilarlos a JavaScript antes de tiempo Dado que el sistema Module est bloqueado, esta funcin probablemente nunca desaparecer Sin embargo, puede tener bugs sutiles y complejidades que mejor se dejan sin tocar Require resolve Utilice la maquinaria internal require para buscar la ubicacin de un mdulo, pero en lugar de cargar el mdulo, simplemente devuelva el nombre de archivo resuelto Gracias a la brillante labor de Ryan Dahl, tenemos node js, un hermoso y elegante framework de servidor integrado en la parte superior del motor Javascript de V8 de Google39s callback, arg SetInterval callback, delay, arg Esto abre un nuevo mundo de posibilidades para el desarrollo de aplicaciones web, APIs y servidores ligeros Cada semana tendremos una discusin de grupo sobre un aspecto particular de NodeJS, o un whackiest En esta charla relmpago, Aidan Feldman demuestra un prototipo que construy para manipular objetos 3D virtuales usando un dispositivo mvil El manejo de gestos en un telfono generalmente significa tapping, swiping, etc pero todos estos se limitan al plano rea 2D de la pantalla El uso del movimiento del telfono mismo abre nuevas dimensiones para las interfaces gestuales Con un dispositivo mvil gyro-enabled y un modelo 3D en la computadora, este proyecto pasa l os datos de orientacin del dispositivo desde el telfono a la pantalla a travs de websockets, ajustando el modelo en tiempo real GitHub Repo para el proyecto aqu Esta charla fue presentada en el encuentro de NodeJS en Spotify en Nueva York Autor desconocido el 3 de diciembre de 2014 Stefan Kutko, VP de Ingeniera en Electronifie Presenta lo que su equipo ha aprendido mientras que la construccin de lo que es muy probable la primera plataforma de comercio electrnico de bonos escrito en Node js l cubre cmo Electronifie utiliza mensajera y microservicios para construir su sistema distribuido, permitiendo que los dominios del problema sean separados por el servicio y cada servicio sea personalizado adaptado al problema que resuelve En el camino, Stefan muestra cmo una arquitectura CQRS Command Query Responsibility Separation permite que su sistema se ample y cmo patrones como Event Sourcing permiten beneficios interesantes para aplicaciones financieras Mezclado en ser vislumbres de cmo Electr onifie est respirando aire fresco en FinTech mediante el uso y contribucin a Open Source, adems de aspersiones de Meteor, complementos binarios y habilitar el escritorio Node js web apps Diapositivas estn disponibles aqu Esta charla fue presentada en el encuentro de NodeJS en Spotify en Nueva York Rich Harris desarrollador de front end en The Guardian y creador de RactiveJS nos lleva a un viaje de por qu y cmo cre la herramienta de construccin Gobble Cmo ampliarlo y cmo utilizarlo en sus proyectos Puesto que Grunt js encendi el camino a una manera ms elegante de trabajar, theres sido una explosin de las herramientas de la construccin basadas en node js - Gulp, Plumber, Assetgraph y brculi, por nombrar algunos Cada uno trae algo nico a la mesa Teniendo en cuenta todas estas opciones, por qu necesitamos otro Gobble est optimizado para la sanidad del desarrollador Prioriza la depuracin, la facilidad de uso y un enfoque basado en estndares para crear complementos Esta charla explora porqu estas cosas son tan importantes, y cmo Gobble trabaja debajo de la capilla para entregar las construcciones ardientes rpidas Esta charla fue organizada por el meetup de nodejs en Shutterstock en Nueva York Brad Oyler Desarrollador principal de NBC News Habla sobre la transicin que ayud a guiar para mover NBCNews a Node js l cubre qu retos enfrentaron y qu mejores prcticas encontraron en el proceso Brad tambin sugiere cundo y NO querra usar NodeJS para un sitio de contenido, as como cmo probar mejor su implementacin Esta charla fue organizada por el meetup de nodejs en Shutterstock en Nueva York WebRTC es un proyecto abierto y gratuito que permite a los navegadores web con capacidades de comunicaciones en tiempo real RTC a travs de simples API de JavaScript Arin Sime CEO y fundador de AgilityFeat explica cmo integrar WebRTC y mensajera en tiempo real en una aplicacin Node js l demos y aplicacin simple para mostrar tanto chat de vdeo y otras caractersticas en tiempo real Esta charla fue dada en la reunin de nodejs organizada por Shutterstock en Nueva York Jarrett Cruger Ingeniero de Software, Nodejitsu discute casos prcticos de uso de Godot, un procesador de eventos en tiempo real de streaming basado en Riemann escrito en Node js Echa un vistazo a esta charla si ests interesado en monitoreo, mensajera, registro interno y recopilacin de datos de mtricas Esta charla fue dada en el NodeJS Meetup organizado por Shutterstock en Nueva York Ben Newman Ingeniero, Facebook ha pasado muchos meses creando Regenerator El proyecto de cdigo abierto brinda soporte para generadores de estilo ES6 a su cdigo En esta charla popular, Ben hablar de lo que lo llev a crear Regenerator, nos mostrar lo que puede hacer hoy, y le dar un pico de lo que va en el futuro Esta charla fue presentada en la reunin de nodejs alojada por Pivotal Labs Si usted est construyendo una nueva aplicacin web, los problemas que se ejecutan en general encajan en una de las cuatro categoras 1 Prototipos Quiero const ruir algo rpidamente 2 Adaptacin Quiero ser capaz de iterar fcilmente en mi base de cdigo 3 Pruebas Quiero asegurarme de que la aplicacin funcione 4 Escala Quiero utilizar recursos del servidor eficientemente En su presentacin, Valeri Karpov de MongoDB proporcionar una visin general de alto nivel de cmo la pila MEAN, y en particular Node js y npm, resuelven cada uno de estos puntos de dolor Esta charla fue grabada en la reunin de node js en Pivotal Labs Esta charla fue grabada en la reunin de NodeJS en Pivotal Labs Los datos conectados abundan hoy Los servicios web modernos conectan personas, productos, fotos, ubicaciones, ideas, creaciones y ms Han surgido nuevas herramientas que estn optimizadas para esta conexin y las bases de datos de grficos son una de esas herramientas En lugar de trabajar con tablas y filas, trabaja con nodos y aristas almacenando datos exactamente como lo dibujara en una pizarra En esta charla de la reunin de nodejs en Nueva York, Aseem Kishore compartir una in troduccin a Neo4j, la base de datos de grficos ms popular, junto con sus experiencias y lecciones aprendidas construyendo un inicio en la parte superior de la misma Aseem es el coautor y mantenedor de node-neo4j, la biblioteca cliente de Node js para Neo4j, as que el infierno tambin camina a travs de los fundamentos de usar Neo4j con Node js Aseems diapositivas de la charla estn aqu Su navegador no admite el elemento de audio Aleksandr Yampolskiy CTO de Cinchcast y BlogTalkRadio Y su colega Danny Gershman presentar Sharing Slides con 10,000 personas en r t Socket IO y Node JS en produccin en esta grabacin de la reunin de NYC Node JS Cubren consejos sobre seguridad y muestran cmo se acercaron a asegurar su aplicacin Esta tecnologa habla cubre asegurar Node js amp Socket io en produccin Su navegador no admite el elemento de audio Hakka Labs conecta ingenieros de software y cientficos de datos en torno a desafos comunes utilizando tecnologas de datos de cdigo abierto Nuestro contenido, pr ogramas de capacitacin y eventos estn diseados para proporcionar a los ingenieros el conocimiento y conocimientos para crear sistemas escalables y analticos para manejar cantidades cada vez mayores de datos Ms informacin NYC 33 W 17th Street, 4th floor Nueva York, NY 10011 SF 44 Tehama San San Francisco, CA 94105Interactive Brokers API addon para Node js compatible con IB API 9 71 Este complemento utiliza la ltima API Interactive Brokers POSIX C estable Autor Jae Yang - dchem keybase io dchem Los mensajes de entrada estn en el orden en que fueron recibidos Adems, los mensajes salientes estn limitados a 50 msg seg como IB lo requiere El comportamiento predeterminado es que si su tasa de salida es mayor que el 51 mensaje ser manejado en el siguiente segundo Si desea ver el jsdoc de este proyecto, simplemente ejectelo en el archivo ibapi js El mensaje de servidor messageId ha cambiado de svrError al error YYYY-MM-DD - SEMVER - Notas 2015-11-21 - 2 4 0 - Correccin del manejo de mensajes de error del servidor 2015-06-27 - 2 3 3 - Fixes build remove sourceforge 2015- 06-09 - 2 3 1 - Cambiado a SEMVER, la descarga anterior debera usar OldVer 2015-03-01 - 2 3 0 - Nodo 0 12 amp io js 1 4 2 build compatible Limpieza de cdigo y ejemplos actualizados 2015-01-07 - 2 2 0 - Ms eficiente de la CPU 2014-12-29 - 2 1 0 - Utiliza controladores de eventos en lugar de emisores de eventos 2014-11-12 - 1 23 0 - Incluye lib en el propio paquete 2014-09- 10 - 1 21 0 - Soporta API 9 71 2014-09-09 - 1 19 0 - Agrega order js y placeOrder puede utilizar order obj 2014-04-22 - 1 17 0 - Correccin de compatibilidad para API 9 70 2014-03-17 - 1 13 0 - Instalacin ms fluida a mltiples sistemas operativos 2014-01-17 - 1 0 0 - todos los eventos de EWrapper enlazados en ibapi js 2013-09-02 - 0 0 0 - Comando inicial Instalar descomprimir si Linux instala MinGW Instala msys-unzip en su lugar De unzip Instalar msys-wget Instalar Microsoft Visual Studio Para Windows con MSVS 2013 Para Windows con MSVS 2012 C omo alternativa, incluya GYPMSVSVERSION2012 o GYPMSVSVERSION2013 en variables de entorno para Windows Instalar las herramientas de lnea de comandos de xcode Instalar homebrew Instalar wget a travs de homebrew Asegrese de tener instalado nodo-gyp Ejecute preinstall sh que hace lo siguiente Descargue la ltima API IB establecida en import Copie el contenido de IB API packageaposs IBJts source PosixClient Directorio de entrada importacin compartido Copie el contenido de IB API packageaposs IBJts source PosixClient src en directorio de importacin Aadir define IBUSESTDSTRING en los siguientes archivos en import directorio EClientSocketBase cpp EPosixClientSocket cpp Descargas libjson 7 6 1 node-gyp Reconstruir Si la compilacin falla porque tiene VS2012, use node-gyp --msvsversion2012 rebuild Requerir ibapi Crear manejadores de eventos Registrar manejadores de eventos para messageIds Invoke connect Beneficio Se utilizan como almacenes de estado y abstraccin para IB API Tambin tiene que pasar instancia del objeto, como aposorderapos a algunas de las funciones de solicitud del cliente Cada uno de ellos viene con un constructor orden de ejecucin del contrato escnerSubscripcin contratoDetails beginProcessing Punto de entrada inicia el procesamiento del mensaje DoAction accin Una accin, una funcin personalizada o solicitudes de API, se pueden vincular a cada evento placeSimpleOrder Mtodo de entrada de orden ms simple ProcessMsg Msg procesador - una implementacin POSIX del controlador de mensajes de red Esto no necesita ser llamado explcitamente por el usuario Los comandos siguientes se utilizan para solicitar una accin especfica a travs de la API de IB Por qu el infierno usara Node js Tutorial de caso por caso Introduccin La creciente popularidad de JavaScripts ha trado consigo una gran cantidad de Cambios, y la cara del desarrollo web de hoy es dramticamente diferente Las cosas que podemos hacer en la web hoy en da con JavaScript que se ejecuta en el servidor, as como en el na vegador, eran difciles de imaginar hace slo varios aos, o fueron encapsulados en entornos de caja de seguridad como Applets Flash o Java Antes de excavar en Node js Es posible que desee leer sobre las ventajas de usar JavaScript en la pila que unifica el idioma y el formato de datos JSON , lo que le permite optimizar la reutilizacin de los recursos del desarrollador Como esto es ms un beneficio de JavaScript que de Node js especficamente, no lo discutiremos mucho aqu Pero es una ventaja clave para incorporar Node en tu stack Como Wikipedia dice Node js es una compilacin empaquetada del motor JavaScript de Googles V8, la capa de abstraccin de la plataforma libuv y una librera central, que est escrita principalmente en JavaScript Ms all de eso, vale la pena sealar que Ryan Dahl, el creador de Node js, tena como objetivo crear sitios web en tiempo real con capacidad de empuje Inspirado en aplicaciones como Gmail En Node js, le dio a los desarrolladores una herramienta para trabajar en el paradigma de E S sin bloqueo, impulsado por eventos Despus de ms de 20 aos de aptridas-web basado en el paradigma de solicitud-respuesta sin estado, finalmente tenemos aplicaciones web con conexiones bidireccionales en tiempo real En una frase Node js brilla en aplicaciones web en tiempo real que emplean tecnologa push a travs de websockets Bueno, despus de ms de 20 aos de aptridas basado en el paradigma de solicitud-respuesta sin estado, finalmente tenemos aplicaciones web con conexiones bidireccionales en tiempo real, donde tanto el cliente como el servidor pueden iniciar la comunicacin, Permitindoles intercambiar datos libremente Esto est en marcado contraste con el tpico paradigma de respuesta web, donde el cliente siempre inicia la comunicacin Adems, todo est basado en la pila web abierta HTML, CSS y JS que se ejecuta sobre el puerto estndar 80 Uno podra argumentar que hemos tenido esto durante aos en forma de Applets Flash y Java, pero en realidad, La web como un protocolo de tra nsporte para ser entregado al cliente Adems, se ejecutaban en aislamiento ya menudo operaban sobre puertos no estndar, lo que puede haber requerido permisos adicionales y tal Con todas sus ventajas, Node js ahora juega un papel crtico en la pila de tecnologa de muchas empresas de alto perfil que dependen de sus beneficios nicos En este post, discutir no slo cmo se logran estas ventajas, sino tambin por qu es posible que desee utilizar Node jsand por qu no usar algunos de los modelos clsicos de aplicaciones web como ejemplos Cmo funciona La idea principal de Node js utilizar E S sin bloqueo y eventos para mantenerse ligero y eficiente frente a las aplicaciones en tiempo real que utilizan datos intensivos que se ejecutan a travs de dispositivos distribuidos Eso es un bocado Lo que realmente significa es que Node js no es una nueva plataforma de plata-bala que dominar el mundo del desarrollo web En su lugar, es una plataforma que llena una necesidad particular Lo que realmente significa e s que Node js no es una nueva plataforma de plata-bala que dominar el mundo del desarrollo web En su lugar, es una plataforma que llena una necesidad particular Y entender esto es absolutamente esencial Usted definitivamente no quiere utilizar Node js para las operaciones de uso intensivo de la CPU de hecho, el uso de l para el clculo pesado anular casi todas sus ventajas Donde Node realmente brilla es en la construccin de aplicaciones de red rpidas y escalables, ya que es capaz de manejar un gran nmero de conexiones simultneas con alto rendimiento, lo que equivale a una alta escalabilidad Cmo funciona bajo el cap es bastante interesante En comparacin con las tcnicas tradicionales de servicio web en las que cada conexin peticin genera un nuevo subproceso, que ocupa la RAM del sistema y eventualmente maximiza la cantidad de RAM disponible, Node js opera en un solo hilo, S, lo que le permite soportar decenas de miles de conexiones simultneas mantenidas en el bucle de eventos Un clculo rp ido suponiendo que cada hilo potencialmente tiene un acompaamiento de 2 MB de memoria con l, que se ejecuta en un sistema con 8 GB de RAM nos pone en un mximo terico de 4000 conexiones simultneas, adems del costo de cambio de contexto entre hilos Ese es el escenario que normalmente se ocupan en las tcnicas tradicionales de servicio web Al evitar todo esto, Node js logra niveles de escalabilidad de ms de 1 M conexiones concurrentes como una prueba de concepto Hay, por supuesto, la cuestin de compartir un nico hilo entre todas las solicitudes de los clientes, y es una trampa potencial de escribir aplicaciones Node js En primer lugar, la computacin pesada podra ahogar nodos de hilo nico y causar problemas para todos los clientes ms sobre esto ms adelante como las solicitudes de entrada se bloque hasta que dicho clculo se complet En segundo lugar, los desarrolladores deben tener mucho cuidado de no permitir que una excepcin borre hasta el bucle de eventos Node js de ncleo superior , lo que har que la instancia de Node js termine bloqueando eficazmente el programa La tcnica utilizada para evitar las excepciones borboteando hasta la superficie es devolver errores al llamador como parmetros de devolucin de llamada en lugar de lanzarlos, como en otros entornos Incluso si alguna excepcin no tratada logra burbujear, existen mltiples paradigmas y herramientas disponibles para supervisar el proceso del Nodo y realizar la recuperacin necesaria de una instancia bloqueada aunque no ser capaz de recuperar sesiones de usuarios , siendo el ms comn el mdulo Forever O un enfoque diferente con las herramientas del sistema externo upstart y monit NPM El gestor de paquetes de nodos Al discutir Node js, una cosa que definitivamente no debe omitir es la compatibilidad integrada para la administracin de paquetes utilizando la herramienta NPM que viene por defecto con cada instalacin de Node js La idea de los mdulos de NPM es bastante similar a la de Ruby Gems Un conjunto de componentes reuti lizables disponibles pblicamente, disponibles a travs de una instalacin fcil a travs de un repositorio en lnea, con administracin de versiones y dependencias Se puede encontrar una lista completa de los mdulos empaquetados en el sitio web de NPM npmjs org O se accede mediante la herramienta NPM CLI que se instala automticamente con Node js El ecosistema de mdulos est abierto a todos y cualquiera puede publicar su propio mdulo que aparecer en el repositorio de NPM Una breve introduccin a NPM un poco antigua, pero an vlida se puede encontrar en howtonode org introduction-to-npm Algunos de los mdulos NPM ms populares de hoy son express - Express js, un framework de desarrollo web inspirado en Sinatra para Node js, y el estndar de facto para la mayora de las aplicaciones de Node js que hay hoy en da Connect - Connect es una estructura de servidor extensible para Node js, proporcionando una coleccin de complementos de alto rendimiento conocidos como middleware que sirven como base de base p ara Express Socket io y sockjs - Componente del lado del servidor de los dos componentes websockets ms comunes que existen hoy en da Jade - Uno de los motores de plantillas ms populares, inspirado en HAML, un valor predeterminado en Express js Mongo y mongojs - Envoltorios MongoDB para proporcionar la API para bases de datos de objeto MongoDB en Node js Redis - Redis biblioteca de clientes Coffee-script - El compilador de CoffeeScript que permite a los desarrolladores escribir sus programas Node js usando Coffee Subrayado lodash Lazy - La biblioteca de utilidades ms popular en JavaScript, empaquetada para ser utilizada con Node js, as como sus dos contrapartes, que prometen un mejor rendimiento tomando un enfoque de implementacin ligeramente diferente Forever - Probablemente la utilidad ms comn para asegurar que una secuencia de comandos de nodo dada se ejecute continuamente Mantiene el proceso de Node js en produccin ante cualquier fallo inesperado La lista continua Hay toneladas de p aquetes realmente tiles por ah, disponibles para todos sin ofender a los que he omitido aqu Ejemplos de dnde debe usarse Node js CHAT Chat es la aplicacin ms comn en tiempo real y multiusuario Desde IRC en el da , a travs de muchos protocolos propietarios y abiertos que se ejecutan en puertos no estndar, a la capacidad de implementar todo hoy en Node js con websockets que se ejecutan sobre el puerto estndar 80 La aplicacin de chat es realmente el dulce - Ejemplo de punto para Node js es una aplicacin ligera, de alto trfico, de datos intensivos pero de bajo procesamiento clculo que se ejecuta a travs de dispositivos distribuidos Tambin es un gran caso de uso para aprender tambin, ya que es simple, pero cubre la mayora de los paradigmas que usar en una aplicacin tpica de Node js Vamos a tratar de describir cmo funciona En el ejemplo ms simple, tenemos una nica sala de chat en nuestro sitio web donde la gente viene y puede intercambiar mensajes de uno a muchos en realidad todos la moda Po r ejemplo, digamos que tenemos tres personas en el sitio web todas conectadas a nuestro foro de mensajes En el lado del servidor, tenemos una simple aplicacin Express js que implementa dos cosas 1 un manejador GET request que sirve la pgina web que contiene tanto un tablero de mensajes como un botn Send para inicializar la entrada de nuevo mensaje, y 2 un websockets Servidor que escucha los nuevos mensajes emitidos por los clientes websocket En el lado del cliente, tenemos una pgina HTML con un par de manejadores configurados, uno para el evento de clic de botn de envo, que recoge el mensaje de entrada y lo enva por el websocket, y otro que escucha los nuevos mensajes entrantes en el Cliente de websockets es decir, mensajes enviados por otros usuarios, que el servidor ahora quiere que el cliente muestre Cuando uno de los clientes enva un mensaje, heres lo que sucede El navegador captura el botn Enviar clic a travs de un controlador de JavaScript, recoge el valor del campo de entrada es decir, el texto del mensaje y emite un mensaje websocket usando el cliente websocket conectado a Nuestro servidor inicializado en la inicializacin de la pgina web El componente del lado del servidor de la conexin websocket recibe el mensaje y lo reenva a todos los dems clientes conectados mediante el mtodo de difusin Todos los clientes reciben el nuevo mensaje como un mensaje push a travs de un componente websockets del cliente que se ejecuta dentro de la pgina web A continuacin, recoger el contenido del mensaje y actualizar la pgina web en el lugar mediante la adicin del nuevo mensaje a la Junta Este es el ejemplo ms simple Para una solucin ms robusta Puede utilizar una cach simple basada en la tienda Redis O en una solucin an ms avanzada, una cola de mensajes para manejar el enrutamiento de mensajes a clientes y un mecanismo de entrega ms robusto que puede cubrir prdidas de conexin temporal o almacenar mensajes para clientes registrados mientras estn desconectados Sin embargo, indep endientemente de las mejoras que realice, Node js seguir funcionando bajo los mismos principios bsicos reaccionar a eventos, gestionar muchas conexiones simultneas y mantener la fluidez en la experiencia del usuario API ENCIMA DE UN OBJETO DB Aunque Node js realmente brilla con aplicaciones en tiempo real, es bastante natural para exponer los datos de DB de objetos por ejemplo, MongoDB Los datos almacenados JSON permiten que Node js funcione sin la diferencia de impedancia y la conversin de datos Por ejemplo, si est utilizando Rails, debera convertir de JSON a modelos binarios y luego volver a exponerlos como JSON a travs del cuando los datos son consumidos por Backbone js, Angular js, etc o incluso llamadas jQuery AJAX normales Con Node js, simplemente puede exponer sus objetos JSON con una API REST para que el cliente consuma Adems, no necesita preocuparse por la conversin entre JSON y cualquier otra cosa cuando lea o escriba de su base de datos si est usando MongoDB En resumen, pued e evitar la necesidad de mltiples conversiones utilizando un formato de serializacin de datos uniforme en el cliente, el servidor y la base de datos ENTRADAS QUEUAD Si est recibiendo una gran cantidad de datos concurrentes, su base de datos puede convertirse en un cuello de botella Como se muestra arriba, Node js puede manejar fcilmente las conexiones simultneas Pero como el acceso a la base de datos es una operacin de bloqueo en este caso , nos encontramos con problemas La solucin es reconocer el comportamiento de los clientes antes de que los datos se escriban realmente en la base de datos Con ese enfoque, el sistema mantiene su capacidad de respuesta bajo una carga pesada, lo cual es particularmente til cuando el cliente no necesita confirmacin firme de la correcta escritura de datos Ejemplos tpicos incluyen el registro o escritura de datos de seguimiento de usuarios, procesados en lotes y no utilizados hasta un momento posterior, as como operaciones que no necesitan ser reflejadas instantneamente como actualizar un cuenta de Facebook en Facebook donde la consistencia eventual Utilizado en el mundo NoSQL es aceptable Los datos se ponen en cola a travs de algn tipo de almacenamiento en cach o de la infraestructura de colas de mensajes por ejemplo, RabbitMQ, ZeroMQ y se digieren mediante un proceso de proceso por lotes de base de datos independiente o servicios de procesamiento intensivos de procesamiento, escritos en una plataforma de mejor desempeo para dichas tareas Un comportamiento similar se puede implementar con otros lenguajes frameworks, pero no en el mismo hardware, con el mismo alto y mantenido rendimiento En pocas palabras con Node, puedes empujar la base de datos escribe a un lado y tratar con ellos ms tarde, procediendo como si tuvieran xito DATA STREAMING En las plataformas web ms tradicionales, las solicitudes y las respuestas se tratan como un evento aislado de hecho, theyre realmente arroyos Esta observacin se puede utilizar en Node js para crear algunas caractersticas interesantes Por ejemplo, es posible procesar archivos mientras estn siendo subidos, ya que los datos entran a travs de un flujo y podemos procesarlo de una manera en lnea Esto podra hacerse para la codificacin de audio o video en tiempo real Y la representacin entre diferentes fuentes de datos ver seccin siguiente PROXY Node js se emplea fcilmente como un proxy del lado del servidor donde puede manejar una gran cantidad de conexiones simultneas de una manera no bloqueante Su especialmente til para la representacin de diferentes servicios con diferentes tiempos de respuesta, o la recopilacin de datos de mltiples puntos de origen Un ejemplo considere una aplicacin del lado del servidor que se comunica con recursos de terceros, extrae datos de fuentes diferentes o almacena activos como imgenes y videos en servicios cloud de terceros Aunque existen servidores proxy dedicados, el uso de Node puede resultar til si su infraestructura de proxy es inexistente o si necesi ta una solucin para el desarrollo local Con esto, quiero decir que podra crear una aplicacin de cliente con un servidor de desarrollo Node js para los activos y las solicitudes API de proxy stubbing, mientras que en la produccin youd manejar dichas interacciones con un servicio de proxy dedicado nginx, HAProxy, etc BROKERAGE - STOCK TRADERS DASHBOARD Permite volver al nivel de aplicacin Otro ejemplo en el que domina el software de escritorio, pero que podra ser fcilmente reemplazado por una solucin web en tiempo real es el software de comercio de corredores, utilizado para rastrear los precios de las acciones, realizar clculos y anlisis tcnicos y crear grficos Cambiar a una solucin basada en la web en tiempo real permitira a los corredores cambiar fcilmente estaciones de trabajo o lugares de trabajo Pronto, podramos comenzar a verlos en la playa en la Florida O Ibiza O Bali MONITORIZACIN DE LA APLICACIN DEL SALTO DE INSTRUMENTOS Otro caso de uso comn en el que Node-with-web-sockets enc aja perfectamente seguimiento de los visitantes del sitio web y visualizacin de sus interacciones en tiempo real Si est interesado, esta idea ya est siendo producida por Hummingbird Usted podra reunir estadsticas en tiempo real de su usuario, o incluso moverlo al siguiente nivel mediante la introduccin de interacciones especficas con sus visitantes mediante la apertura de un canal de comunicacin cuando lleguen Un punto especfico en su embudo Imagnese cmo podra mejorar su negocio si supiera lo que sus visitantes estaban haciendo en tiempo real, si pudiera visualizar sus interacciones si est interesado, esta idea ya est siendo producida por CANDDi Con los sockets de Node js de dos vas en tiempo real, ahora puede hacerlo SISTEMA DE SEGUIMIENTO DEL TABLERO DE INSTRUMENTOS Ahora, vamos a visitar el lado de la infraestructura de las cosas Imagine, por ejemplo, un proveedor de SaaS que desee ofrecer a sus usuarios una pgina de supervisin de servicios por ejemplo, la pgina de estado de GitHubs Con el bucle de eventos Node js, podemos crear un potente panel de control basado en web que comprueba los estados de los servicios de forma asincrnica y empuja los datos a los clientes mediante websockets Tanto los estados internos intra-empresa como los servicios pblicos pueden ser reportados en vivo y en tiempo real utilizando esta tecnologa Empuje esa idea un poco ms e intente imaginar las aplicaciones de monitoreo del Network Operations Center NOC, por sus siglas en ingls en un operador de telecomunicaciones, proveedor de cloud network hosting, o alguna institucin financiera, todas ejecutadas en la web abierta respaldada por Node js y websockets En lugar de Java y o Applets Java Nota No trate de construir sistemas duros en tiempo real en Nodo es decir, sistemas que requieran tiempos de respuesta consistentes Erlang es probablemente una mejor opcin para esa clase de aplicacin Donde se puede usar Node js APLICACIONES WEB DEL SERVIDOR Node js con Express js tambin se puede usar para crear aplicaciones web clsicas en el servidor Sin embargo, aunque sea posible, este paradigma peticin-respuesta en el que Node js llevara alrededor de HTML representado no es el caso de uso ms tpico Hay argumentos a favor y en contra de este enfoque Aqu hay algunos datos a tener en cuenta Si su aplicacin no tiene ninguna CPU de computacin intensiva, puede construir en Javascript de arriba a abajo, incluso hasta el nivel de base de datos si se utiliza el almacenamiento de objetos JSON DB como MongoDB Esto facilita el desarrollo incluyendo la contratacin de manera significativa Los rastreadores reciben una respuesta HTML totalmente renderizada, que es mucho ms SEO-friendly que, por ejemplo, una aplicacin de pgina nica o una aplicacin de websockets ejecutada en la parte superior de Node js Cualquier CPU de computacin intensiva bloquear la capacidad de respuesta de Node js, por lo que una plataforma de subprocesos es un enfoque mejor Alternativamente, podra intentar escalar el clculo El u so de Node js con una base de datos relacional es todava bastante doloroso ver ms abajo para ms detalles Hazte un favor y recoger cualquier otro entorno como Rails, Django o ASP MVC si ests intentando realizar operaciones relacionales An alternative to these CPU intensive computations is to create a highly scalable MQ-backed environment with back-end processing to keep Node as a front-facing clerk to handle client requests asynchronously Where Node js Shouldnt Be Used SERVER-SIDE WEB APPLICATION W A RELATIONAL DB BEHIND Comparing Node js with Express js against Ruby on Rails, for example, there is a clean decision in favour of the latter when it comes to relational data access Relational DB tools for Node js are still in their early stages theyre rather immature and not as pleasant to work with On the other hand, Rails automagically provides data access setup right out of the box together with DB schema migrations support tools and other Gems pun intended Rails and its peer frameworks have mature and proven Active Record or Data Mapper data access layer implementations, which youll sorely miss if you try to replicate them in pure JavaScript Still, if youre really inclined to remain JS all-the-way and ready to pull out some of your hair , keep an eye on Sequelize and Node ORM2 both are still immature, but they may eventually catch up Its possible and not uncommon to use Node solely as a front-end, while keeping your Rails back-end and its easy-access to a relational DB HEAVY SERVER-SIDE COMPUTATION PROCESSING When it comes to heavy computation, Node js is not the best platform around No, you definitely dont want to build a Fibonacci computation server in Node js In general, any CPU intensive operation annuls all the throughput benefits Node offers with its event-driven, non-blocking I O model because any incoming requests will be blocked while the thread is occupied with your number-crunching As stated previously, Node js is single-threaded and uses only a single CPU core When it comes to adding concurrency on a multi-core server, there is some work being done by the Node core team in the form of a cluster module ref nodejs org api cluster You can also run several Node js server instances pretty easily behind a reverse proxy via nginx With clustering, you should still offload all heavy computation to background processes written in a more appropriate environment for that, and having them communicate via a message queue server like RabbitMQ Even though your background processing might be run on the same server initially, such an approach has the potential for very high scalability Those background processing services could be easily distributed out to separate worker servers without the need to configure the loads of front-facing web servers Of course, youd use the same approach on other platforms too, but with Node js you get that high reqs sec throughput weve talked about, as each request is a small task handled very quickly and efficiently Concl usion Weve discussed Node js from theory to practice, beginning with its goals and ambitions, and ending with its sweet spots and pitfalls When people run into problems with Node, it almost always boils down to the fact that blocking operations are the root of all evil 99 of Node misuses come as a direct consequence In Node, blocking operations are the root of all evil99 of Node misuses come as a direct consequence Remember Node js was never created to solve the compute scaling problem It was created to solve the I O scaling problem, which it does really well Why use Node js If your use case does not contain CPU intensive operations nor access any blocking resources, you can exploit the benefits of Node js and enjoy fast and scalable network applications Welcome to the real-time web About the author View full profile raquo member since February 12, 2013 Tomislav is a software engineer, technical consultant, and architect with over 10 years of experience He specializes in full-stack, hi ghly scalable, real-time JavaScript and Node js applications, with past experience in C, Java, and Ruby He is an agile Kanban practitioner who loves to collaborate on development projects click to continue Comments For relational DBs on Node, I like bookshelfjs org Awesome article I definitely agree that node js has some really perfectly suited use cases However, I do want to comment on something that is a bit of a pet peeve of mine -- I wish you wouldn39t contrast it with a non-existent straw-man quottraditionalquot system in quothow it worksquot 1 No server spawns a thread per request they use thread pools or process pools 2 You say quotcost of context switchingquot as if it only applies to OS threads Userspace frames need to be saved and loaded in the same way Plus the OS does it with a few instructions, leveraging specialized support from the hardware -- which userspace can39t do 3 Similarly, userspace threads I e frames or closures if you don39t want to talk threads take memory re sources in the same way kernel threads do It39s not as if each system thread has it39s full stack limit allocated, so that39s an unfair analysis Normal systems regularly have more than 4000 without coming anywhere near where you39ve pegged it 4 The BIG problem with single-thread concurrency is the lack of parallelism Sure, you can handle thousands of requests per second, but only one CPU on your 40 core server is going to doing ANY work Anyways, all the above is in regard to a pretty minor paragraph in your excellent post Node isn39t really guilty of this, it39s just that there39s a lot of FUD out there around threads and processes which people often use to justify insane designs and avoid threads when they are completely the right approach for the majority of situations All your advice about computation heavy apps could not be more wrong It39s certainly true that attempting heavy computation inline with the request-response cycle, is a bad idea, but the same could be said of threaded environments If you have CPU bound operations, it39s a good idea to handle them with worker processes JavaScript, and Node in particular are actually very well suited to handle distributed computation - especially with the good support for functional style programming If you write your algorithms using pure functions and distribute workload to workers, you can easily distribute your workload over networked clusters Node39s great support for networking makes it an ideal environment both for computing and orchestration tasks, and it39s orders of magnitude faster than Ruby at both Very helpful Thanks a lot You certainly don39t want to block any Node js process that is handling server requests, but that doesn39t mean you shouldn39t do heavy computations behind a Node js server So long as the process doing the heavy computations is spawned asynchronously from your server process Still you could end up blocking your Node js process if you overdue it, but that is also true with the traditiona l threaded server This is going to make me out to be a giant noob but can you give me an example of a quotblocking operationquot Any such hybrid system I39m thinking Use Node js to process a request by simply placing it onto a to-process queue, return a message to the client stating something like quotcalculating quot Then Node js is free to continue with the next request The to-process queue can then be run through using a difference thread or even multiple threads As and when these complete, they send their results to Node js39s queue which will then relay it back to the original client Of course this means some ID key needs to accompany each item in this queue to ensure the correct data is returned to the correct client Anything like this possible Or even already implemented Great article, thanks Tomislav, thanks for this very well written and concise article We 39ve been using MongoDB and Node js in combination with AngularJS for the user facing part for gt 2 years now and couldn39 t imagine to ever, ever, ever switch back to Flash after 10 years of experience or JEE RDMS So it boils down to just one programming language JS , one data format JSON and one programming paradigma Async , wow That39s by far the best explanation out there about Node js I finally understood that it is very useful in certain scenarios and not just a hype Thanks a lot this was very informative Node works well with relational databases, just don39t use an ORM SQL isn39t that hard to learn True that, but I thought we as an industry got over the idea of writing all the SQL manually Tools are good for common operations, tools that just get out of the way when needed to write some specifics manually, otherwise reducing the possibility of errors and security issues that happens with more junior developers whether we want it or not Hi Adin, let me comment back 1 same scenario happens, there39s a limitid amount of threads serving limited amount of clients 2 3 Referenced presentation shows some me asurements and numbers, you may be quite right on the internals but the common rough overview still stands as a general comparison of how things work between those two worlds 4 parallelization options are also discussed within the article - as background worker processes, or several node processes behind a reverse proxy, or with Node clustering API which is still in Experimental, but will be there eventually Thanks for the great comments and the quality feedback on the article with that additional info, I appreciate it Yes, you can have multiple worker processes, even communicating through Message Queue MQ Those workers can be separate Node processes as node is single-threaded, unless you experiment with clustering API - I haven39t tried yet as the API is very early and probably immmature , but can be any other language I39ve worked on such a system which ran C on Mono for background processing in a distributed CQRS architecture Any calculation that keeps the CPU busy until the calcula tion is finished Imagine some operation that requires 2 seconds to perform the calculation Hit that with 100 clients - you get a 200-sec delay Note the article I have referenced, which explains the blocking of the event loop zef me 4561 node-js-and-the-case-of-the-blocked-event-loop Yes, that falls under the idea of having 39backend worker processes39 in a distributed system As the system is distributed, those workers can use any language platform, including Node Gracias por sus comentarios I agree on that completely, for worker processes you could use JS when it fits, and that implies Node js as that39s what runs JS on the server, but you can also use other languages that do the particular work at hand fast For ORMs in general, I just see them as a tool that can get something done quick for a newbie, but end up really gumming up the works later on The closest thing I use for an ORM is a PDO wrapper which I borrowed and rewrote from an old co-worker , that helps with writing PDO statem ents github ellisgl GeekLab-XPDO Apologies for the wall of text Excellent discussion 1 Agreed But threads and processes are powerful tools That39s why a hybrid of threads processes and event systems typically does best in the real world Like the much beloved nginx 2 3 Sorry, I may not have been clear When I said FUD regarding threads and processes, I meant the referenced presentation It39s just a bunch of specifically tailored microbenchmarks designed to prove a certain point Which is fair, given that it39s a lightning fair and can be a bit polemic In fact, it39s a great talk But these synthetic micro-benchmarks are not the basis for a fair and through comparison To say the difference between nginx and apache benchmarks is purely because of context switching is an extreme oversimplification Nginx is specifically designed to serve requests really, really quickly in common circumstances IMO generally by a tight coupling with the latest OS event systems, etc You could specifically measure the overhead of context switching, and I would wager it39s trivial 4 But then aren39t you at the mercy of the horrible quotprocess overheadquot the referenced presentation talks about -- can39t have it both ways To be clear, my position using threads processes or whatever is not in and of itself a problem There are way more important design factors there, the OS overhead of those entities is pretty trivial Hence I hate it when people adopt a silly design based on the idea thread-are-bad or processes-are-bad or some other such nonesense Everything always needs to be put in the right context I have presented possible situations, to analyze each one deeply I39d need a book - Still, I really appreciate your comments and insights, they are valuable addition to the article Thank you for those When use node js as api server, and the back-end db is the bottleneck, if the clients are the other applications, not user interface, can we just let these client requests hang there waiting for db ope ration complete sine node js can handle massive concurrent connections easily Is a MQ necessary in this scenario In my opinion, node js is right the queue ORM does not exist to make query languages quoteasierquot, it39s a tool used to encapsulate database concerns, isolating them from the application There are several benefits, but ultimately, it makes applications easier to test and maintain years down the road Excuse the tangent, nothing to do with node Yes, you could, but Ruby would be a poor choice if your aim is performance thank you for a great article By using the node js child process nodejs org api childprocess - would you be able to overcome the high computational blocking Fibonacci issue any real life examples What of the Facebook example you used When a user clicks on the like button there is an immediate acknowledgement but the data is written later Cant that be an example of node used with relational db Anyway what makes up the message queue Maybe go-lang is alternative c hoice This article is great, except for the part where it says don39t use NodeJS for computation because it doesn39t have threads Since when do we need threads Run child processes The only advantage to running threads over child processes is shared memory Last time I checked, any system large enough for this entire debate to be relevant anyway is going to span multiple servers anyway, their by nullifying any benefit of threads So, get it out of your head that NodeJS can39t do CPU intensive work And, if you can39t, contact HildoerSystems, and we can fix all the stuff you built wrong with NodeJS One application that few people use, but could be really fanastic, is using NodeJS to build a desktop application There39s plenty of packages out there - personally, I favour Node-Webkit github rogerwang node-webkit Hi, nice article However I would like to point one thing, NodeJS is not running in a single thread The programmer doesn39t have to spawn new threads, they are handled by node itself o n event basis NodeJS is evented, each function call per event will run in a separate thread That approach encourages writing lighter functions If your function does a lot of computation, reactor it into smaller ones and they all will run in separate threads Think about the example where you process file while streaming That is possible thanks to threads Great article BTW, what software did you use to make the images wireframes This is very well written Thank you for this gt The technique used to avoid exceptions bubbling up to the surface is passing errors back to the caller as callback parameters Excuse me, but that seems misled In my understanding, Node-style callbacks nodeguide stylecallbacks i e the pattern of passing errors as the first param to callbacks are a side-effect of the event queue returning control as soon as possible to allow for concurrency itself rather than a design to avoid interrupting flow The fact that exceptions do not bubble are actually quite often a source o f errors, especially to newcomers Great Article Wondering who made the beautiful diagrams Great article, thanks BTW, which tool do you use to draw the images For those that are curious, it seems the images were created with Adobe Photoshop CC I checked this by looking at the EXIF data of one of the images exifdata File Size 61 kB File Type PNG MIME Type image png Image Width 624 Image Height 600 X Resolution 72 Y Resolution 72 Color Space sRGB Color Mode 3 Compression Deflate Inflate Orientation Horizontal normal XMP Toolkit Adobe XMP Core 5 5-c014 79 151481, 2013 03 13-12 09 15 Creator Tool Adobe Photoshop CC Macintosh Also, the fact that javascript is not able to check type compliance introduces dificulty in expontaneous organization of huge number of coders updating the same codebase simultaneously Mmmm disagree, if you use correctly a good ORM take a look at Mature ORMs you get also a distributed cache of your Relational Database that allows you more performance for the same bucks and more scalability of your sistem ORM is not just for easing the life to newies It is non sense to use a non-blockin sistem such as node js, if at the end you get blocked at your Database But using a ORM that way, is not for newbies Glad you mention, most people don39t mention this I39d rather keep Node decoupled from the browser and keep the flexibility of running the frontend on platforms that normally don39t run Node like smartphones For that matter, since you can do an async shell to a console application, you could easily write your worker in, for instance golang, and then use a generic pool to limit your cpu workers from there, you can shell out to a more efficient worker You can also do that for CPU intensive JS as well, I did this for my scrypt-js module there are binary modules that are more performant, but I wanted one without compiled dependencies It39s not that hard to queue work to other systems, and no reason node can39t be used to orchestrate said work Could could use an intermediate system such as TypeScript, you can also use a linter jshint and even require a level of test coverage in order for release Getting 100 test coverage is generally very easy in scripted environments Would suggest looking into Mocha, Chai, and Proxyquire If you aren39t writing unit tests, type safety really doesn39t give you much I am beginning to find Node js quite interesting However, the paradigm it appears to be promoting is hardly new to IT In the mainframe communications world we called such capabilities, quotre-entrantquot, where a single process could handle a high level of calls to it Microsoft implemented similar capabilities with its Singleton object infrastructure and I imagine the Java world has done similar implementations Oddly enough, the Microsoft recommendation for enhancing scalability across the wires to back-end services was to promote the quotSingle Callquot object structure or one object instance per calling request Thus, the argument made for Node j s is actually contrary to the Microsoft recommendation BTW, a recommendation I never quite understood In any event, as a business ASP developer, I am not sure if I would find any use for a Node js implementation, though our web designer may On another note, I would like to add my own opinion on the use of ORMs ORMs are great tools when faced with an existing database structure against the requirements of a new application as the ORM can handle a lot of the mundane, repetitive coding that is usually found with any database application However, because ORMs are high-level layers, they are usually not the most efficient options to use against databases whereas direct access through native providers are In many respects, better to do the repetitive coding for efficiency over applying a heavy-weight interim layer such as an ORM Very interesting observation I39d like someone to elaborate a bit more on that I would like a more concrete example, like some piece of concrete code calling an asyn c heavy-computational function, and someone explaining what happens if that is run in a multicore equipment Does the thread that was sercing requests gets blocked Or another thread is used for that Node is terrible as a web server Even the creator suggests that this is not what Node is intended for, and that it should be leveraged for it39s strengths JavaScript quotEverythingquot, just like worker processes, is ludicrous This is ridiculous Node was built with the web as first class, and it excels as a web server It is rapidly replacing Ruby and PHP in many enterprise organizations because it has demonstrably boosted both application performance reduced page-load times, etc and developer productivity You can in fact create multi-threaded servers using Node js to offer more stable performance but it does take a lot of extra work see the built-in cluster module and the childprocess module I have created a framework which runs on multiple CPU cores and solves much of the issues discussed i n this post Check it out nombo io Connor James Leech does something like mongoose js solve the node relational database issue mongoosejs Yes - see the queue pre-forked worker pool approach adopted by EWD js pdf Summarised here pdf yeah, I was wondering about it too great visual awesome post Erick Ruiz de Chavez Just to complement what Tracker1 disqus said on his comment, JavaScript is usually criticized about the type checking and many other misunderstood features, like quotthisquot , but the truth is that JavaScript is just very different to what most of the developers are used to do, and most of the developers who sadly have bad comments about it are just those who haven39t had the interest or the time to understand how it really works JavaScript development is not only about the language itself but also about the tools you use to work with it, to mention some more you should really take a look at Grunt, Uglify, Yeoman, CoffeScript, etc Erick Ruiz de Chavez I might as well make mysel f a giant noob, but to put a quick example, any disk I O operation is considered a blocking operation as it has to perform a physical operation to read some data from the disk Another blocking operation example is querying a DB, where you basically have to wait for the response before doing anything else I39d say, any sort of computational operation will be as blocking as the time it takes to complete In any of the above examples, you usually have your blocking request on line A and line B wont be executed until line A is completed Node js instead is asynchronous, so line A is requested and then queued, and line B is executed no matter if line A is completed or not when line A is complete, you are notified either with a callback or with an event and then you can continue doing whatever you need to do with such result Very helpful article npm install felixge node-mysql That might be the most useful repository I39ve seen in ages Erick Ruiz de Chavez I have a small example of mysql and no de js at github erickrdch node-mysql-demo How about quotWhy the hell would I read an article without an obvious date and time stampquot Nice article, indeed But, hfuti disqus, you39re wrong in saying quotNodeJS is not running in a single thread each function call per event will run in a separate thread quot As far as I understood, the main NodeJS event loop consuming your JS code in fact runs in a single thread All potentially blocking and or long-running tasks like disk I O is delegated to and executed by libuv as part of the node runtime engine which spawns a limited number of threads made available as thread pool Said this, it39s obvious that the main event loop thread is not affected or blocked by other yet again asynchronous code execution So, for example, file I O with the fs module itself is implemented in a non-blocking manner - in the end as good as the OS kernel allows non-blocking operations Of course foreign processes or threads could always be spawned by custom modules or 3rd party services worker processes And yes, there are runtime env projects handling more than one node process and their threads on the same machine or cpu cluster But that39s another story Feel free to correct me if I39m wrong This is fantastic Very well written article You put a lot of thought into it Quick node express question I am I am adding rapid data entry, not batch, data entry to my system I have a form mfntapes that works great I have a test form joe the prompts for the number of times I want to call the mfntapes form The gist contains the code, fails to work, the after prompting for cnt attempts to call for mfntapes cnt times The question is how to call form mfntapes x number of times where x is a vairable See lines 45-55 of gist github toulon 9571625 ORM for real projects are useless hone Nice article - gt SERVER-SIDE WEB APPLICATION W A RELATIONAL DB BEHIND I wonder why Node is not good for that You have promise based SQL libraries like Knex which enables non-blocking qu eries Node has no opposition with relational databases it has no interest with blocking I O drivers only Relational or not relational I wish NodeJS was not almost systematicallty presented as THE de facto alternative to the traditional threaded webserver Async IO is not exclusive to NodeJS Most major languages out there - including Java and PHP - have async IO frameworks similar to NodeJS This wiki page lists most of them en wikipedia org wiki Reactorpattern I39m not saying NodeJS doesn39t have its merit, but I39m sick and tired of seeing people flocking to it as if it39s the only async IO stack available, and the only alternative to the good ol39 PHP or Rails stack To be honest, we may be stuck with Javascript on the browser, and will be for a very long time except if Javascript becomes just another target platform language thanks to asm js , but I can39t come up with any good reason to use it on the server side in favor to other available languages Most of the alternatives are just w ay better as a language, have better standard libraries, tools and resources Please stop spreading Javascript on the server, it39s creepy p Jarle Leopold Moe How would you upload files What about Directory integration Active Directory, Open Directory What about communication with external services All request depending on a response from any of these types of services would block the calls Node js is single-threaded it39s only applicable for certain types of tasks These re great examples of why Node is so much better than the competition at web services None of thee are blocking operations in Node They39re asynchronous While other servers waste resources spinning off separate threads, Node fires off an event-driven asynchronous operation and keeps taking more requests in the meantime The practical upshot is that porting web services from PHP or Ruby can deliver between 2x and 10x improvements in simultaneous connections and typically 30 - 60 improvements in average response times Lots of big companies are doing web Node projects just for these reasons, including Adobe, Paypal, eBay, Walmart, Yahoo Groupon, Under, etc very nice article and very clear thought regarding node js where to use and where not Every major application development platform has already had support for HTML5 for the past several years, including websockets for bi-directional communication Add to this the strong types, multi-threading and the tons of other stuff that languages such as Java have to offer and I seriously question why anyone would waste their time using this Just want to mention that node is not the only server side option for javascript especially since oracle put the nashorn javascript engine on the jdk Now you can also use all the jvm goodness from javascript we are using vert x as the async server and nashorn to use javascript You can see some code samples in this module github core9 module-nashorn the project site is This is an amazing overview Thank you Very well written Graci as por compartir I39m with you For trivial application an ORM is fine You have to remember that most devs really only have experience with trivial applications So they will argue for an ORM because they can39t learn SQL or don39t have the time or staff to right stored procs And they have never heard of Memcached and so think the ORM is a cache lo que sea And the weirdest excuse I hear is about decoupling The ORMs I have had the misfortune of running across do the opposite They very much tightly couple the UI to the database ORM layers are large and buggy So how do you test it Yeah, good luck unit testing it which you have to do because they are buggy If you are integrating with AD then you are probably in a Microsoft shop And if you are uploading files to a web server then your environment isn39t very sophisticated So for you, you probably should just stick with IIS and VB Microsoft public recommendations for architecture are a joke Microsoft is a marketing and licensing company They a re not a tech company primarily If you have a quothuge number of coders updating the same codebase simultaneouslyquot you have larger problems Dev teams don39t scale well I would run With too many cooks in the kitchen the broth will spoil There is going to be no accountability and no responsibility with that many people contributing Why Node is different - using bar as analogy bahmutov calepin co why-node-is-different lta amjad-almadinah org D8AED8AFD985D8A7D8AA-D8A7D984D8AAD986D8B8D98AD981 D8B4D8B1D983D8A9-D8AAD986D8B8D98AD981-D8B4D982D982-D8A8D8A7D984D985D8AFD98AD986D8A9-D8A7D984D985D986D988D8B1D8A9 quotgt lt agt lta amjad-almadinah org D8AED8AFD985D8A7D8AA-D8A7D984D8AAD986D8B8D98AD981 D8B4D8B1D983D8A9-D8AAD986D8B8D98AD981-D981D984D984-D8A8D8A7D984D985D8AFD98AD986D8A9-D8A7D984D985D986D988D8B1D8A9 quotgt lt agt lta amjad-almadinah org D8AED8AFD985D8A7D8AA-D985D983D8A7D981D8ADD8A9-D8A7D984D8ADD8B4D8B1D8A7D8AA-D988D8B1D8B4-D8A7D984D985D8A8D98AD8AFD8A7D8AA D985D983D8A7D981D8ADD8A9-D8ADD8 B4D8B1D8A7D8AA-D8A8D8A7D984D985D8AFD98AD986D8A9-D8A7D984D985D986D988D8B1D8A9 quotgt lt agt lta nsmat-dammam org D8AED8AFD985D8A7D8AA-D8A7D984D8AAD986D8B8D98AD981 D8B4D8B1D983D8A9-D8AAD986D8B8D98AD981-D8B4D982D982-D8A8D8A7D984D8AFD985D8A7D985 quotgt lt agt lta nsmat-dammam org 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D8B4D8B1D983D8A9-D8AAD986D8B8D98AD981-D8A8D8ACD8AFD8A9 quotgt lt agt lta nile7 D8B4D8B1D983D8A9-D985D983D8A7D981D8ADD8A9-D8ADD8B4D8B1D8A7D8AA-D988D8B1D8B4-D985D8A8D98AD8AFD8A7D8AA-D8A8D8A7D984D982D8B7D98AD981quotgt lt agt lta nile7 D8B4D8B1D983D8A9-D8AAD8AED8B2D98AD986-D8A3D8ABD8A7D8AB-D8A8D8A7D984D8ACD8A8D98AD984quotgt lt agt lta nile7 D8B4D8B1D983D8A9-D8B9D8B2D984-D8A3D8B3D8B7D8AD-D8A8D8A7D984D8AFD985D8A7D985quotgt lt agt lta hrefquotstorify monyhusseinquotgtlt agt lta hrefquotmonyhussein deviantart quotgtherelt agt lta hrefquotfreee4des blogspot quotgtherelt agt lta hrefquotemyhusssein tumblr quotgtlt agt lta hrefquotkenanaonline users monyhussein quotgtlt agt Just to let you know you have quotsupport supportquot in How it works under-the-hood is pretty interesting Compared to tradition al web-serving techniques where each connection request spawns a new thread, taking up system RAM and eventually maxing-out at the amount of RAM available, Node js operates on a single-thread, using non-blocking I O calls, allowing it to support support tens of thousands of concurrent connections held in the event loop Isn39t it possible to get the date of posting of your article or all your posts for that matter It is really disturbing to read technical posts without dates thanks You mention Node js is good for a chat application because it39s not CPU intensive I can39t think of too many use cases that don39t require much CPU For example, could Twitter be built with Node It seems there39s a lot of computation required just to generate your feed Node js uses certainly can39t be so narrow Great article Gracias There39s an old joke you39re not a paranoid if they39re really out to get you That39s the attitude that should be taken when it comes to Web application security One thing that bo thers me about Node js is that I have no insight into how secure it is When an environment like Grails, where I have Java Groovy running on Tomcat I have some confidence in Tomcat security, if for no other reason than the fact that Tomcat has been around a long time and has evolved This isn39t true with Node js I was also looking at the Node js libraries At least for the file access, it appears to be nothing more than a thin layer over the POSIX file system calls I like the Java or even the C file abstractions more The main argument that I see for Node js made in this post is that it has really lightweight threads and that you can have JavaScrip everywhere This last issue is an attraction for those who only know JavaScript As far as the light weight threads, this is not so much a language issue as a platform support issue It should be possible to support this kind of thread model in another language Toptal designer did the design for them your comment is ridiculous too, ORM is not a ev eryone39s accepted pattern The irony is that lambda39s aka, anonymous methods are the basis of both javascript and the preferred technique for C39s multiple implementation of the same callback pattern, albeit with full type safety In fact node39s major characteristics 2-way, lightweight, asynchronous has effectively been implemented in C as quotSignalRquot, and there are several language features which are both asynchronous and natively multithreaded, unlike node js Now I could understand if your experience with ORM39s was limited to Hibernate absolutely awful, one of the worst implementations of a major concept I39ve ever had the displeasure to work with or even EF, which at least is fairly powerful and expressive due to LINQ, if data nanny overkill But a micro-ORM like Dapper gives you all the flexibility and power of direct SQL with the benefits of rich data manipulation via objects, and is fast, very fast And I39m sorry, but OOP is a well proven, very effective design strategy if y ou know what you are doing, i e you are a pro I see three major problems with the node js approach that no one seems to have a good answer for So you start with the premise that there are such inefficiencies in waiting for IO that there is a huge potential there So yeah, you39ve got great concurrency, right until you get to the first blocking library, a database, a file server, etc, which is practically every major piece of functionality written So it39s just hurry up and wait for 10,000 connections instead of 100, ok that39s something, but where does it get you So then you start rewriting all those services asynchronously, but that39s just a snake eating its own tail, because that39s hurry up and wait too Because in the end every database on earth ultimately comes to a magnetic arm skipping across a disk or reading solid state memory, and that39s assuming you39re on the same machine, as opposed to distributing data across a pool of far slower network connections Then you have the sing le threaded issue There is probably no more misused language than Javascript because the barriers of entry are so low And while early adopters might understand a bad practice when they see one, most javascript programmers simply have no idea what they are doing Thirdly, Javascript is not exactly a particularly fast language, so the advice seems to be don39t do compute intensive tasks Where does that get you So you end up with an elegant solution to one category of issues, but you39re trapped there, with no way out of the non-compute intensive, hurry up and wait ghetto Wow, that is one seriously ignorant statement Uploading files to webservers is THE stated rational of node js39s inventor for why he wanted a non-blocking library So when you fanboi39s break out of the single threaded, slow dynamic world of cut and paste code with zero type safety, multithreading, and only one trick pony lambdas to match 39s multiple asynchronous capablities, all so that you can get 10x more users to hurr y up and wait for IO , then you can lecture us about quotsophisticationquot The framework has a vastly more advanced feature set than any language you can name, period, and IIS, properly configured, can beat the piss out of Apache and can readily match nginx as a reverse proxy or for static content In the end you39ve got several problems which are intractable 1 Javascript is slow, and your technology of choice is single-threaded, so intensive compute tasks are off the table 2 Javascript debugging and testing blows in comparison with any typed language Pro39s use extensive testing, not fly by the pants 39hey it works39 3 The 39everything is modular39 approach is not an architecture, it39s an invitation to chaos, like Perl or PHP 4 Concurrency doesn39t buy you crap if all you are doing is waiting for some other IO bound process, which is pretty much everything worth doing with computers 5 The quality and experience of many javascript programmers not node js programmers necessarily, but i t39s popularity will bring them is remarkably poor, as demonstrated by comments in which fanboi39s prove that they have no idea how other systems that actually don39t ignore any computing problem they can39t solve work ORM is just a work around for the problem of impedance mismatch, nothing else Its not big deal, about OO its a cross paradigm like AOP and its not really based in nothing else beyond encapsulation Without procedural paradigm OO does nothing, every real skilled programmer already knows that Impedance mismatch involves all sorts of ramifications, especially in regards to maintainability, portability, extensibility and performance To quote Ethan above since my explanation obviously didn39t take quot it39s a tool used to encapsulate database concerns, isolating them from the application There are several benefits, but ultimately, it makes applications easier to test and maintain years down the road quot quotabout OO its a cross paradigm like AOP and its not really based in n othing else beyond encapsulation Without procedural paradigm OO does nothingquot Ok, I39ll be sure to spread the word that we should stop fooling around with all this esoteric OOP stuff and get back to a language that lets us do everything vis-a-vis encapsulation VB6 You39d think a Javascript programmer might want to mention inheritance, if not polymorphism, since javascript has a relatively unusual mechanism for it prototypes A singleton is an instantiable non-static object with a private constructor so that only a single instance can be created Imagine an instance class with a static property exposing an instance of itself that depends upon a private instance constructor It was actually implemented in Java before existed Perhaps what you are thinking of is a non-blocking Callback mechanism, which is handled in C via delegates, events multicast delegates and the new async and await keywords that transform standard C into a lambda to be executed at compile time It also handles multi-th readed asynchronous operations via it39s Parallel extensions, which permit spreading load across multiple threads cores as long as that work is not serial in nature Also, I would encourage you to check out a micro-ORM like Dapper It39s far less comprehensive than EF, but it39s far more flexible and gets out of the way, plus it39s significantly more efficient than Hibernate and EF about 5x faster for reads Yes this article rocked tits Esp good for a Croat with ESL nodeboy So after reading your article I still havent figured out why Node js want to reinvent the wheel I still think node js and the likes are crap A great introduction to find out what it is JavaScript and once the answer to from lta hrefquotgoo gl cfkytpquotgtbagaimana tips mengatasi wanita frigidlt agt Noob questions Um, isn39t the ease with which you can move request data i e untrusted data into database where data is assumed to be trusted a big hazard How do you ensure that you never forget to inspect every piece of inco ming data when it arrives, before you start trusting it Generally, I would assume something as popular as Node js would have thought of this, but I remember back when Rails had blanket model update That changed real quick when Github39s use of this quotfeaturequot was exploited fortunately, by a whitehat Also, of course, just because you add a conversion speed bump does not mean that people won39t make mistakes, but at least they39re more likely to give it some thought, which probably means they39re going to make less mistakes I don39t understand the angst against using an ORM Were you in a proper environment where concerns were separated The ones bashing ORM just sound like they don39t know what they39re doing or how to engineer proper software Why on earth would I want to go from writing software in Java C whatever to drop into SQL where it is hard to version, properly test, and can apparently cause severe brain damage Everything is a double edged sword - an implementation or a conve ntion like using an ORM over raw SQL really doesn39t matter Depending on the situation raw SQL might be best it might be better to use a NoSQL store maybe an ORM is fine Usually, from my experience, I can tell you that an ORM is better for a lot of reasons, and they have been relayed by M I spent the time to write my own libraries to abstract vendor specific implementations and you need to create your own mappings You can easily spawn from a certain state or use existing data structures It took time to write my libraries and it was not easy at all to do it but it was well worth my time to do it since I can now reuse my libraries Is it the BEST I don39t know I like it but I certainly won39t go around to arbitrary technical articles that have nothing to do about SQL and post something like quotYes this technology is good but stay away from raw SQLquot I just don39t see a need to be bashing anything here, especially an ORM when the article is exclusively about JS and NodeJS Probably one o f the main points of this article, that gives Node is supposed scalability, is the offloading to a Queue or Service Bus that leads to asynchronous processing That is a well proven architectural pattern, available in many languages, is especially used in CQRS Command Query Responsibility Segregation with Event Sourcing, is very well suited to be used by technologies such Reactive Extensions that provide considerably greater functionality and flexibility than Node Asynchronous programming and handling its pitfalls has been around without Node for years, if you had knowledge of enterprise development As for the hate against ORMs you guys crticising it seem to be moving from front-end development into an area where you have no knowledge or expertise in OO, BDD, TDD or any other proven Enterprise level methodology No concept of integration other than Twitter feeds No experience of complex Workflow or scalable caching This is one of the dangers - you know JavaScript, and a bit of SQL So ever ything else is superfluous - until you need it, such as the attempts to bring an element of type checking to JavaScript Seriously, each technology has its place, but there is no one size fits all approach Appreciate the strengths of each technology, and use them where appropriate Great introduction to node js Thanks, i samo naprjed Because they suck for a complex application Sure if your scenario where you spent all this time trying to make the ORM work the way you need it to, you could have just put that same effort into writing the SQL properly and making sure it39s organized etc and you would be further along in the project and have more control over the application ORM39s are great at saving time on a small to medium scale project, but once you delve into more complex and larger applications, you39re going to spend either A A lot of time coding to make the ORM work the way you need it or B Just decide to write the SQL yourself because the time it takes to make the tool work how you need it just isn39t worth it Very great post you add JavaScript is better than some of the other programming languages therefore lta hrefquotgoo gl L7tXeOquotgtcara menghilangkan gatal keputihanlt agt better fit with JavaScript Great, informative article Gracias por compartir esto lta unlockpwd quotgtUnlockpwdlt agt Its very good post thanks Pot, meet kettle Those may be intractable problems if any of them were true None of them are 1 a JavaScript is all JIT these days and delivers 1-2x native code performance faster than any other dynamic language I39m aware of b Non-blocking by default can deliver orders-of-magnitude improvements in code efficiency - transparently 2 Almost all modern editors support type inference for JS ESLint, Closure Compiler, and a number of other options offer sophisticated static analysis capabilities TypeScript even offers a nice structural type system 3 The opposite of modular is a tightly coupled monolith That39s a bad idea in ANY language 4 quotif all you are doing is waiting for some other IO bound processquot - Non-blocking by default means you39re NEVER waiting for some other IO bound process That39s why Node delivers such huge improvements on resource utilization 5 2006 called They want their language-snob attitude back The days when serious engineers considered JS to be a toy are long since over JS powers sophisticated enterprise applications at just about every fortune 500 today Additional point JS is the only language with fully native support for isomorphic code meaning you reuse most of your application on both servers and clients You can write JS ONCE, and it will power the server, the web browser, and mobile devices including iOS and Android See React Native leanpub learn-javascript-react-nodejs-es6 1 1-2x native code performance Do the electrons run faster on node code Not a good start 2 Type inference is mapping variable declarations to types without explicit syntax, i e a it requires actual types, and b compilers enforce t ype safety, not editors And you can dress it up any way you want, but there is no way to enforce sophisticated state analysis with slop-tastic dictionaries of whatever stored in strings amp functional delegates Also, Typescript is not Javascript, it is Javascript with a half-assed type system pasted on top Even Google is abandoning Js for Typescript in Angular 2 0 Why Because Google has decided that an untyped system is insufficient for serious work But is that type system anywhere near as sophisticated as a compiled language Nope, not even close 3 You are misunderstanding what I was characterizing as quotmodular designquot The alternative is not monolithic code, but encapsulation, specialization via inheritance or prototyping , polymorphism, and externalizing dependencies via IoC The alternative is SOLID, i e modern Object Orientation 4 Your process may not be waiting, but your customers are waiting for the callback My point is that being able to serve more requests doesn39t do you an y good if every served request then has to wait on yet another operation In the end, somewhere somehow, you will eventually be going to a disk or waiting for IO, because that39s where the information the customer wants lives 5 I didn39t say that JavaScript was a toy language, I said that most JavaScript developers are well-meaning, cut and paste amateurs, and they will invade the ranks of node js developers as it becomes more popular I39ll take a strong type system over quotfull native supportquot that39s not native for quotisometricquot code that can run on clients or servers you say that like that39s a good thing any day Wow, Js on android and iOS I guess the days of Apple adding another strongly typed, native language for iOS are overlt sarcgt Obviously you39ve never heard of Mono, the cross platform that compiles and runs on every major OS, produces native runtimes for all three major mobile platforms, and runs on everything from beowulf clusters to wearable devices This is why we don39t respect you You don39t know or understand anything that came before, or anything outside of your javascript bubble You don39t solve any problems that weren39t solved before, but yet you39re convinced you have all the answers That seems to be a common theme with anyone whose education system stressed self-esteem over critical thinking This reply just strikes me as willful ignorance 1 Really Rather than investigate and learn the truth, you just want to ridicule the answer I39m not taking the bait Watch Brendan Eich39s Fluent talks if you39re interested in actually learning something 2 I know what types and type inference are, and I know the benefits of static types I39ve been in this game since before JavaScript was invented TypeScript is a superset of JavaScript that compiles to JS amp allows for sophisticated static analysis It39s structural type system is better than the type system Java had back when I was coding in Java, and it39s much better as in more reliable and flexible than C and C 3 quotencapsulation, specialization via inheritance or prototyping , polymorphism, and externalizing dependencies via IoCquot - these are all forms of modularity, and JavaScript modules provide viable alternatives to all of them - and in the case of class inheritance, it39s far superior See medium javascript-scene the-two-pillars-of-javascript-ee6f3281e7f3 4 quotyour customers are waiting for the callback quot Fortunately, that39s where the performance I talked about in point 1 shines JS provides efficient utilization of I O resources In fact, dealing with I O bottlenecks is the entire reason that Node was invented I39ve ported several large production projects from PHP and Ruby to Node, and seen dramatic reductions in response times, both average response times and response time ranges - and since a typical Node app utilizes a small fraction of the memory required for C applications, your customer I O competes less with the RAM paging you might experience with a compiled C application 5 quotyou say that like that39s a good thingquot I39ve seen objectively measurable increases in team velocity ranging from 40 - 60 improvements Believe it or not, it39s a fact, and being more able to adapt to changing needs and experiment more particularly in the UI layer delivers very real business value Why do you think so many enterprise organizations are adopting Node It39s not because some dev prefers JS It39s because they ran the tests themselves and figured out it39s a huge win quotObviously you39ve never heard of Mono, the cross platform that compiles and runs on every major OSquot Yeah, I have - what I haven39t heard of is Mono delivering anywhere near the value that Node delivers in enterprise production Got a good article on that 39Cause a quick Google search isn39t turning up much Check out this awesome result in the top 3 of the SERP quora Why-isnt-C-with-Mono-popular-for-enterprise-applications-on-Linux-servers but a quick Google search for Enterprise Node j s delivers quite a bit Here are the top 3 search results I see blog risingstack node-js-is-enterprise-ready joyent nodejs-support centurylinkcloud blog post node-js-is-taking-over-the-enterprise-whether-you-like-it-or-not There39s really no contest here 1, yes, I39m mocking your evidently accidental claim that JavaScript makes electrons run faster, or even as fast as native, because it39s patent nonsense Not only is that impossible, it ignores one of node js39 acknowledged weaknesses It sucks on compute intensive operations, because it39s single threaded, which means compute intensive operations block execution duh 2 Your knowledge of Java does not qualify you to understand what a competent type system is Java39s generics are a largely useless, johnny come lately me-too feature when compared against to C generics because they suffer from run-time erasure, in other words, the generic type safety and reflection only works at compile time, because at run time, everything is cast to an obj ect So when you are going on about static analysis, you are effectively trying to claim it39s as good as compile time run time type reflection, which is very far from the truth 3 Meh Chopping up everything into discrete functions is a form of modularity too, but it39s vastly inferior to SOLID, which was my point in the first place And while prototype based inheritance is interesting, it39s hardly better than real inheritance, which permits far more flexible arrangements 4 I don39t see how it39s impressive to speed up a Ruby app, or refactor some craptastic PHP into something faster Your memory overhead claims are equally baseless I can run micro on a watch or on an arduino device I can write that runs very well on an under-powered phone Look at the memory chrome consumes for an SPA, or try to run a complex javascript app on a tablet, and then tell me how quotlightweightquot JavaScript is 5 The lack of a proper separation of concerns which is the cause of most maintainability problems i s the number one issue I encounter at enterprise scaled customers, and an impressive team velocity is always how they got there Why do I think a number of organizations are choosing node Because typically a mediocre, over-sized team of moderate competence f39d up the previously shiny new thing that was supposed to solve all their problems, so they want to believe the hype that the problem is not them, but their previous technology choices 1 I think you misunderstood my meaning JS runs 1-2x SLOWER than native -- much better perf than any other dynamic language I know of It39s fast enough to run AAA game engines like Unreal Engine and Unity in stunning quality at 60 fps 2 I actually think that a good native type tool would be a good addition to JavaScript, but only if they39re user-definable structural types That said, JavaScript does support static analysis via type inference, and there are a number of ways to provide type hints for dev tools In addition, JavaScript also has an impressi ve array of runtime analysis tools 3 quothardly better than real inheritance, which permits far more flexible arrangements quot Wrong medium javascript-scene the-two-pillars-of-javascript-ee6f3281e7f3 4 My apologies I was not aware of micro JavaScript also runs as-is on low-powered devices including Arduino, Tessel, and a number of others Node works great on most of them If that39s not small enough, you can create a custom Node compile, drop features, even swap out the V8 engine for a different JS engine if you need to You can also restrict yourself to using tiny JS libraries of which there are many on npm to keep your codebase compact 5 quot they want to believe the hype that the problem is not them, but their previous technology choices quot That might explain an experiment or two, but the Node takeover is much more than that We39re rapidly replacing apps in a variety of languages with Node Having worked at a fortune 500 during the transition to Node, I can tell you our justification s We did experimental ports to Node, found 1 that the app was faster and more reliable, delivering huge wins in both average response time, and the number of requests we could serve with the same machine, and 2 The developers were more productive for a variety of reasons, including the fact that JavaScript specialists could more easily work on both sides of the stack without context switching, and a lot of code could be shared in both the server and the client Those advantages have real, measurable influences on the company39s bottom line That39s why Node is taking over at both startups and enterprise companies especially with edge it is really handy Thanks Tamisalv I was looking for quick reference read for understanding node js and why projects might use it Reading this gave me a better understanding of advantages of this this technology and also when one might use it Cheers quotAfter over 20 years of stateless-web based on the stateless request-response paradigm, we finally have web applications with real-time, two-way connections quot As a result we have webpages which take longer to load nowadays when we have Internet speeds in the order of megabytes per second, than back in the day when our speeds were in the order of bytes per second but our webpages were plain simple HTML Nowadays we have webpages which load halfway and then stop, which crash at the slightest network error i e dynamic IP address reassigning, or a momentary lapse in the WiFi signal forcing you to reload the whole page, whereas browsers are designed to gracefully handle those errors or resume once the network connection is restored, buggy Javascript scripts don39t handle errors as well I only have 1 question here with your statement quotIt39s structural type system is better than the type system Java had back when I was coding in Java, and it39s much better as in more reliable and flexible than C and C quot I can not take that How can you examplify Some Facts with obviously answer in no - Why did Node inventor used V8 engine which was made in C to power node, if the js type system was so flexible and much better - Can nodejs decode vp8 codec video by itself as efficiently as C C - Could you build nodejs on top of pure javascript instead of C - Is there any such thing as pure javascript You really have to understand my friend that it is a type system that can take advantage of underlying hardware and makes your program efficient at CPU and memory Strongly typed C can solve any problem, even build node js Node shines at non-blocking i o and that is about it, it can not do anything else Yes you can chop-off node code and make it work on micro devices but will it be efficient and make sense Can you make product like node where you have to code in C, yes you can but it would not make sense as power of C C in not in web, its optimizations and hardware It not like non-blocking I O is something new, we have had that in many technologies including java Net, basic, python and perl, t his is very old The only reason why this thing is in limelight is it has enabled millions of frontend javascript developers, who do not understand pointers and bash about C, to write server code, which is simply overwhelming, that39s why the buzz And about quotNode in particular are actually very well suited to handle distributed computationquot, why on earth one would write such a statement Node is not made for computation it can not compute as efficiently as C C Java Perodo With all due respect, lets not bring C in picture here, there is simply no practical comparison at all, or it will be very touchy You may be interested in this medium javascript-scene what-is-webassembly-the-dawn-of-a-new-era-61256ec5a8f6 Actually, Javascript in the V8 server engine is QUITE fast The statement that Javascript is not fast is outdated You combine Node with Chrome and you get a very fast environment If you understand how Node works, it has an event loop that processes all code that is ready to run So , you call a function that has a blocking database call inside and a callback when finished, it allows the the function to be called, which returns immediately allowing you to get on with other things while the database call is being processed So you aren39t quothurry-up and waitingquot as you suppose You get on with other things, and once the database call finishes, execution will continue to the callback which is invoked after the database call returns So, you get the same basic abilities as a multi-threaded environment without all the extra overhead incurred by thread-state swapping Because you don39t get quottime slicingquot you have to be careful that no piece of code takes too long to run, and if it does, you just break it up using packages like quotasyncquot I come from a long C, C, Delphi, Java background, having mastered the multi-threaded paradigm, and I can state assuredly that the Node single-threaded async paradigm is super cool, fast, and highly scalable IF YOU KNOW WHAT YOU39RE DOING But that39s the same for any of the other technologies as well None of these technologies are for neophytes A complex application is precisely where well tailored Domain objects and properly decoupled subsystems are most necessary If you are spending all your time trying to get the ORM to work you should either learn that ORM better or get another ORM I would assume the former goes without saying so if you are still fighting your ORM it39s time to choose one that just works Excepting your last comment that these technologies are not for neophytes, I think you are ignoring the last two paragraphs you were responding to Even the founder of node js says to avoid compute intensive operations Yes, V8 speeds up javascript, but that doesn39t solve the problem of a compute intensive operation or IO dependent operations blocking a single thread You then respond that node js is non-blocking and therefore it can be awaited Great, I got that, sure, but what are you waiting on Some co de that isn39t written in node js apparently, so much for the claimed benefit of quotone true language to rule them allquot , because your single threaded node js process is happily moved on to something else until the callback So, node js works great just as long as you can rely on other processes handling the workload that is blocking like waiting for IO , or another instance of single threaded node js, that will if written quotcorrectlyquot undoubtable kick the can down the road to yet another process And that39s the issue there are a limited subset of stuff done in programs that can be executed in parallel out of order, and or doesn39t rely on blocking operations Multi-threading is more complicated and has some overhead every time there is a context switch, but it means that more cores can be thrown at parallelizable units of work, and even discrete operations can be handled by the different threads In a quotnode js solves everythingquot world, you are either relying on something n ot written in node js or waiting for your single threaded node js application to finish up all the stuff that must be done, one way or another You know what You seem to just like spouting on about something you are clearly not qualified to speak about You obviously have never built anything serious in Node js Well, I have, and I can tell you that it works great if you actually program it correctly That means you use things like job queues, you use the clustering that Node provides, you make sure you do everything with callbacks and promises, you use quotasyncquot and quotsetImmediatequot to properly share the processor between code that is waiting and code can now execute, you make sure UI code has priority over CPU intensive code, etc For example, I wrote an quotasyncquot heap sort algorithm that works great, sorting massive lists while not blocking for any appreciable amount of time I also have a 5000 line heuristic algorithm that is quite complex that I split up so that the main loo ps are executed using async constructs I then have these executed from a job queue called quotKuequot that allows for efficient use of all cores, no threads, great UI response time, and complex calculation jobs being executed in the background using all available processor power This is ALL done in javascript with excellent performance in both CPU intensive tasks and response to front-end data requests In other words mate, the UI is super responsive, and the background processing complex heuristic calculation performed quickly and very responsively This is all done with a single language for both backend and front end, which is a huge deal when it comes to system architecture Why are they not for quotneophytesquot Is it alcoholic I agree Most times that I think an ORM is inadequate for complex queries, I write out raw SQL, later to find out the ORM has an quotapp for thatquot I like using an ORM as much as possible, but I won39t spend too much time making it work for me, otherwise, as M said, I39ll find another ORM Sounds like the words from a quotMichaelquot I know I agree with your last statement quoteach technology has it placequot But why do you assume all Node developers are front-end developers with no back-end knowledge Why is it NOT possible for these developers to make a scalable solution Like or not Node is being used in Enterprise today and will continue to be adopted Javascript is a poor choice of language for enterprise complex development It is messy, difficult to read, difficult to organise, doesn39t support an entire raft of OO paradigms that save a lot of code repetition and provide readable abstraction, predominantly gives run time errors, no AOP, no by convention, no reflection, no generics templates, no precision of scope, no rich low level processing, and it is not type safe We are stuck with it in the browser, and frankly it is only inertia and legacy support that means it is still used there In all rights it should have gone the way of the din osaurs 10 years ago The main driver to move away from scripting languages was that they were a maintenance nightmare and led to ball of mud applications that had constant bugs that couldn39t be tracked It has only been a short 10 years since we breathed a huge sigh of relief when serious development moved off of scripting languages and here we are doing it again unwilling to learn from the past, convinced that this is quotnew and cutting edgequot, rather than just old, tired and regurgitated It will end up the same way as it did last time, being talked about with disgust like classic asp and perl cgi I can only conclude the developers championing it now were just not around to see the fallout of this last time around Every new generation of developer is convinced they have discovered quotthe truthquot, those of us who have seen this cycle of pain just have to sit back and shake our heads in disbelief Unfortunately you can39t teach experience, it is something you have to learn the hard way Sure if you are an amateur and know nothing else then by all means, but anyone trying to do a professional job needs to leave this alone and stop making populist technology choices without considering the outcomes If you can39t evaluate the long term limitations of a technology for yourself you shouldn39t be working in development Developers need to stop being so childish, acting like a bunch of deluded fan boys, this is a serious business, not a game DIOS MIO Eric Are you for real Do you even know how Nodejs works Did you even try to look at backbone of Nodejs Just download yourself a source-code and checkout IT IS IN PLAIN C C is C lib libuv is another and single most important C library in nodejs backbone which makes nodejs async, event driven and non blocking Javascript by itself is body without a soul and life JAVASCRIPT is just a script that you use to script your logic One day if smeoene ports lua with this libs, he will not need Javascript to code same for python etc But th e basic fact remains the same IT IS C code that makes what nodejs is, not that javascript is too fast in fact javascript is slowest in all of the scripting language So don39t flatter yourself in believing that just java-script is great and other things are shit And do not insult C C if you have no knowledge of it So, again, i urge you to take back your words quotJavascript type system is better then Cquot Javascript has no type system and if you still believe that it has one, you are in a very wrong field, go build some scaffolding Also, these companies are not choosing nodejs for the reason you mentioned This is possible in almost all languages The reason why companies are choosing nodejs is that, they get ready made javascript coders, which are in millions and can not do c java code, to do server side because it is cheaper Another reason - gt its ecosystem Yet another reason - gt Its lot easier to conduct load tests in nodejs than other scripts The link you mentioned is work that is intended to be started Why do not you suggest them that please write this web-assembly compiler in nodejs rather than c c assembly because according to you that is superior C39Mon man, how can you compare Nodejs A technology with a C language they are not in the same league C makes node possible, its not visa versa quotThe main driver to move away from scripting languages was that they were a maintenance nightmare and led to ball of mud applicationsquot -- could you clarify what you mean by scripting languages, and what replacements quotserious developersquot migrated to over the past ten years I was pleased to see a reference to Django in the article and have not run across maintainability issues caused by the use of Python, SQL, or ORMs in general On the contrary, Python is my go-to language precisely for its maintainability Your criticisms of js are spot on, but I can39t see how they apply across the entire universe of scripting languages Well I define scripting languages as runtime compilation languages, but there is a lot of overlap these days I prefer the reassurance of compile time verification of at least coding accuracy but that is not the only factor The depth of invasion into the inner workings of the compiler that tend to be exposed by compiled languages these days allow for a whole range of design constructs and patterns that allow programming to be more quotintelligentquot, I just don39t find this level of sophistication in the scripting languages I have used It is a severe limitation for serious enterprise development ORMs are an ugly approach to data access on relational databases, but you would probably have to be a database developer to realise why Data design and Program design have different constraints, ORMs do either an injustice or have to be modified so much that they provide no productivity There are many issues such as security, isolation, atomic operations that ORMs break, and remember a database is a living system and may require changes in between code releases as a matter of course ORMs are a blunt tool if you want real performance from your database and want high concurrency without locking Its a detailed subject I could probably write a book on it, so sorry if this isn39t conclusive enough for you Can39t say much about Python other than I have heard good things in general I39m the other end of the market on I crucify the open source guys next door in productivity and my defect level is about 1 of theirs I think you need a large system before it makes significant differences, as you need to invest in framework and substrate to get the main benefits back, its quotmass codingquot that is the enemy here When you have over a 100,000 code files you need a higher level of maintainability as it is simply beyond human capability to do it file by file and certainly beyond maintenance budgets By making core services that consume code as content you can achieve a high level of quality while keeping everything granular and ensu ring release are small and targeted rather than entire system drops Each to their own, but if you are an IT pro you must have seen the millions of script based systems festering away in businesses because no one can find anything or understand how it works It39s such a common complaint I should think it doesn39t need justifying PD I think quotserious developersquot have migrated to either Java, C or back to C along with their associated web techs etc I wasn39t really intending to be derogatory but these three probably account for 90 of all commercial development atm C wins out on the commercial front for me solely on Microsoft39s considerable ongoing investment and new found modernist approach C is not very productive and Java is really starting to look a little dated Still I work in all three and they get the job done, each have their place P P S quotPython is my go-to language precisely for its maintainabilityquot What do you consider maintainability It is often not what people think it is or is not as simple as they think It encompasses the cost of change and that is the primary cost on the business for a living project Example I have a service with 1000 public methods and the business asks me to de-prioritise all calls that take over 2 seconds If I have to modify any of the code in those 1000 calls then my code has seriously poor maintainability What I should be making is one code change in my service substrate pipeline I should not even be modifying the substrate I should be probably writing a statistics module and a de-prioritise module for that substrate loaded in a separate dll that can be loaded dynamically Now my testing is isolated to just this dll reverse harness testing and when ready for release I can add this dll and maybe make one small config change, that39s it, no regression testing and no risk to existing code, so no production bugs in the service methods So many typical code bases would require all 1000 methods to be altered or at least marked fo r an AOP operation Enterprise design requires upfront anticipation of future quotcrazyquot business requests I find with most scripting languages and even with Java that finding insertion angles later on is nearly impossible Even if I have a complete mare in C I can emit the code directly into the methods using reflection, I have never seen this level of access on a scripting language and even if it was there it would be dangerous code to emit into runtime compiled operations because I am literally changing the operations content so I would need to test the result of each This is just one example I could probably come up with 100s I39m a technical architect framework and substrate so it is my place to quotsavequot my devs from backing themselves into a corner If I do a good job I can reduce the coding and testing effort to 1 of a quotmass codedquot system There is a whole other level of development that most devs will never see or appreciate, this means they are never equipped to make the most appropriate technology choices Interesting article, I39ve got quite a bit of experience in other realms but I39m somewhat new to Node js There39s a few things I39d like to clear up Flash was always async as well, it merely emulated threads much like it sounds like node does by using an event queue However, I believe it is technical ignorance to claim that trusting thread management to a 3rd or 4th generation language would be better than trusting a well-tuned JRE or operating system optimized for it39s multi-core chipset How exactly do you think threads work in the lower levels anyway It isn39t some quotmagicquot, the only way to get true simultaneous code execution is via multiple processors, something you simply can39t accomplish with a single thread It39s also a mistake to say that a new quoteventquot does not add memory or clock cycles taken to a stack just because said events are managed by an interpreted scripting language rather than optimized, compiled C I39d bet my lu nch that a well-written multi-threaded web application written in C or C will blow away any node js app performance-wise, and that39s even without getting into servers and their current multi-core processor architecture If you39ve got a quad or 8-core server running a single node thread you39re only firing on one piston quite ironic that Google calls their engine quotV8quot when considering such a fact Another thing to realize is that while Flash or even Java applets ran in their own runtimes, so does node -- it39s just hidden to the user That is nothing more than quotgoodquot perhaps hostile business moves on Google39s part Lets be honest here, if all browsers came with Flash automatically installed on them, and Apple actually supported Flash on their mobile devices, node probably wouldn39t even exist today I have other concerns about security What kind of protection does it have against cross-site scripting and other attacks Earlier today I stumbled across a TOR Bittorrent client tha t ran in my browser window, and after opening it my computer wouldn39t shut down nicely it scares me to think what it could have been seeding No warnings about security or what types of connections my browser window was opening up, just went along with it39s P2P business the hacker side of me could have a real hay day with those kind of quotfeaturesquot I doubt that kind of stuff has been tested much either which means there39s a lot of room for bugs, and where there39s a lot of room for bugs there39s a lot of room for vulnerabilities But hey, at least your entire stack is all in the same language Means you can hire less experienced developers for less money, right Good Article for Node JS, you can learn Node JS online in iwebworld info or send a email iwebworldinfogmail You could remove all the pitfalls of JS by using the its superset aka TypeScript Tldr Use node for IO-heavy processing and delegating CPU-intensive processing to a cluster of specialized worker nodes ex database, media processing, etc This isn39t exactly new information I covered this topic back in 3912 programmers stackexchange a 179499 1256 Ideally, the and API servers should be mostly stateless excl session management and disposable They39re just a functional pipeline that translates the raw data into consumable representations That way, the servers are easy to provision destroy dynamically to meet the spikey nature of demand I39m not sure why so many of the commenters are vehemently arguing in favor of multi-purpose vertically-scalable server architectures By nature, vertical scaling will always have an upper limit predicated by hardware capacity No matter how efficient the code is The writing is on the wall You can spend a fortune on hardware and lose sleep questioning the validity of your risk assessment aka WAG At the end of the day, bare metal is a fixed asset Best case, it meets expected demand and justifies the cost Worst case, it either costs more than it39s worth or lacks the capacity to meet demand Alternatively, you can embrace distributive computing and automate the infrastructure to grow contract relative to demand For the people fighting religious wars over which language is best, node C java Who cares All 3 allow 39functional-style39 programming All 3, support async processing natively or through extensions All 3 can be managed via provisioning All 3 are perfectly valid for building distributive infrastructure Choosing which one to use depends on the quality of the tools, whether or not it will be used to extend existing infrastructure, and the perception of the client Build whatever you39re good at building If you39re really good build whatever is easiest to implement, support, and generate the most profit or save the most on cost BTW, kudos to the author It39s nice to see somebody do a comprehensive and mostly objective writeup on this topic Yes, both languages support horizontal scaling with asynchronous message management infrastructure CQRS is nothing but a n API implementation pattern CRUD is the typical use case as it should be but Node doesn39t automagically scaffold 1 1 mappings between DB and CRUD see rails laravel django for that Node isn39t a framework at all, it39s just a server You can leverage frameworks ex Express to more easily leverage the full power of Node but you still have to fine-tune your routes to define a fully functional API Net Reactive Extensions have been ported to JS npmjs package rx In fact, even LINQ has been ported to JS yes, seriously linqjs codeplex ORMs are only an issue because they require an additional layer of abstraction from the underlying data If read when the data models need to change to adapt to business demands, both the ORM and the database schema will need to be updated and tested to reflect the changes Which is not really a big deal if there39s a good update strategy in place As for the rest of your comment, you39d do well if you stepped out of your comfort zone once in a while to see how JS d evelopment really works 1 JS classes are currently supported now via ES6 also, available client-side via polyfills Prototypes really aren39t much different than classes in terms of encapsulation except they39re a lot more flexible Compile-time static type checking is even supported via TypeScript Dart if that39s what floats your boat, it39s just not the default 2 TDD BDD isn39t a feature exclusive to statically typed languages There are a lot of great testing frameworks available in JS both server client-side Choose your flavor, unit testing Mocha , behavior driven unit testing Chai , api testing SuperTest , and continuous integration testing TravisCI, and many others are all used extensively throughout the community JSUnit the JS equivalent of JUnit NUnit is even available if you miss unit testing in Java If anything, testing is a basic requirement of any non-trivial JS app that goes into production because you don39t have a compile-time type checker to hold your hand 3 Complex workfl ow Seriously So, you39ve never heard of NPM scripting, grunt, gulp Automating any-and-everything in JS is pretty easy Style enforcement, linting, documentation generation, scaffolding, one-click-deployment, language transpilation, bundling, distribution building, package dependency management, release management, etc 4 cringe if you rely on the compile-time static type checking system alone to validate user input, you39re doing it wrong Building a data layer in any language requires constraints above-and-beyond what the default types provide So, either way you39ll have to extend your data models with custom validation checks The cool part about handling validation in JS is you can use the same routines to check user input on both the client server-side Less duplication of effort FTW Contrary to what you think Javascript really is a 39one size fits all39 approach if you prefer to use it as such Seriously, you can even compile C C directly to javascript using asm js Does that mean you ha ve to use it Of course not Any developer with a speck of sense wouldn39t fault you for choosing C, it39s a great language I have experience writing code in many languages, including building non-trivial desktop applications in C Given a choice, I39d prefer to use Javascript The mix of, looser constraints and functional imperative prototype styles allow for a level of creativity I haven39t experienced in any other language The tools are great, the module system is amazing, and the language itself is getting substantially better with each update Upload Files howtonode org really-simple-file-uploads quotAll the I O operations is handled by Node js is using multiple threads internally it39s the programming interface to that I O functionality that39s single threaded, event-based, and asynchronous quot stackoverflow a 22981768 290340 Libuv uses a thread-pool to handle I O operations files, sockets, etc in an asynchronous manner Where most languages block by default during CPU-heavy I O opera tions, Node doesn39t It simply fires an event when the I O operation completes on the worker thread Active Directory github gheeres node-activedirectory github auth0 passport-windowsauth The distinction is that Node is async by default So, the number of developers doing async programming in other languages are the minority so they39re not as well represented quotI can39t come up with any good reason to use it on the server side in favor to other available languages quot Not gonna lie, using Node at first was Challenging to say the least Getting used to async-by-default is not an easy transition The nice part Node is, the primary focus of the platform is building servers clients so the ecosystem has a lot of powerful tools to do anything dealing with web development quot have better standard libraries, tools and resources quot I39m not sure what gave you that impression It doesn39t use the monolithic-everything-and-the-kitchen-sink base class library approach The core itself is very sma ll but that39s a benefit as it39s much lighter to deploy It also includes a very powerful, full-featured package manager by default so you39re expected to add the dependencies your project needs NPM Node Package Manager has over 200K packages and counting Since the majority of the modules are developed independently from the core, they iterate and improve much faster than the equivalent core libraries in other languages Dependencies are managed locally on a per-project basis in the package json file Typically, it39s bad form for a module author to require that their package be installed globally Installing packages locally prevents version conflicts at the global level and guarantees that -- when you install a package -- everything required to use the module is included It may seem inefficient at first glance because many dependencies may have copies of the same sub-dependencies or sub-subdeps, etc but compared to the cost of including a massive standard library, the storage space is i nsignificant The workflow to setup a project is - clone the source - run 39npm install39 NPM will automatically download and install all of the dependencies incl sub-deps, sub-sub-deps, etc Since the dependencies and their specific versions are explicitly defined in the config, you don39t need to check them into source control In addition, with ES6 incl the new ES6-module-loader about to be released, a new JSPM Javascript Package Manager has been created to manage client-side javascript dependencies Module imports in the browser have finally been formalized in the language spec, so Bower and the variety of module-loading pseudo-standards ex AMD, CommonJS, UMD will go away As said above modern OO languages have a vast array of options to formalize and control your code and solutions that are lacking in scripting languages That39s just the plain truth, no amount of griping is going to change that My point is there are a lot of developers choosing technology by popularity rather than suit ability, that39s what makes them fan boys Right tool for the right job, applies in every trade apart from software development apparently But that is probably because most developers aren39t true quotTradesmanquot, more glorified quotDIY39ersquot The industry is full of amateurs who don39t even know enough to know that they know nothing They think because they can write an if statement and a while loop they are pros Techno-weenies System level I O operations such as files, sockets in Node are handled by libuv which does use a background thread pool The difference is, the main thread can fire and forget the task to a background thread and the background thread will notify the main thread via firing an event when the operation is completed Even with background thread processing, doing lots of I O operations doesn39t scale very well For long-running CPU-heavy tasks ex image movie encoding offloading the tasks to worker nodes is still preferable In most languages, I O operations are handle d in a synchronous manner so if they requests are made on the main thread, they39ll block execution until completed The reason you don39t see a noticeable pause in the UI when this happens is because the UI is asynchronous event-based and runs on a thread separate from the main context There39s nothing stopping you from exposing the API as a microservice WebKit just allows you to run a native JS client I may be wrong but from what I understand, unlike the browser a webkit client isn39t as strictly sandboxed so you can make system calls ex to open save files without user input I think you made my point for me, frothing unthinking, emotional nonsense, with very little in the way of fact, from a mind so fanatic about one thing it can39t even see its failings You seem to have made a fair few assumptions about what I do and don39t know, I have been doing Javascript for 20 years, I know its short comings, I can work effectively in probably 30 languages, I use what is appropriate, I never ind icated otherwise You need to grow up or find a new industry to work in People like you are the problem with Software Development, no nothing nobodies who can39t even make a case for a technology, let alone use one Please stay away from the keyboard and do the rest of us a favour Do you use version control with a standard workflow ex Gitflow workflow where developers make changes on feature branches and code is peer reviewed before being merged I39ve been messing around with trying to build an Angular2 website lately and the Angular2 project is still in early alpha so breaking changes are a regular albeit unfortunate occurrence All of the available examples online are pretty-much broken so I39ve been monitoring the project development on Github The rate that the core developers are thrashing on the codebase is truly remarkable What39s even more amazing is that every PR is unit tested and continuous integration tested well enough that every release is guaranteed to be fully functional as far as they39ve implemented it so far Following what Tracker1 is saying Linting is the equivalent of compile-time checking in JS I even use a Sublime extension that shows linter errors directly in the gutter of the editor as I39m writing code If you want stricter checking you can add a style checker such as 39semistandard39 which guarantees code styling on a project-wide basis That means, spaces-not-tabs, indent 2 spaces, consistent functions, curly braces, etc Type checking is good for superficial bugs ex uninitialized variables, dead branches, invalid values but eventually you39ll have to verify the code doesn39t have logic bugs through unit testing, continuous integration testing, api testing Node uses async event-based I O via libuv incl a thread pool reserved for I O requests The main thread absolutely does not block during I O operations It works the same way cluster would except it39s built into Node Check out one of the presentations on libuv for more details Performance wise, PayPal seems to think good things about Node dongnotes blogspot 2013 12 paypals-nodejs-versus-java-benchmark For security, the 39cors39 module is pluggable to Express and can be used for all the usual CORS control stuff The 39helmet39 module -- also pluggable to Express -- exposes a small suite of features to protect against malicious users including additional cross site scripting protection I39m not sure if I39d call a Fullstack JS dev 39inexperienced39 Having a solid understanding of multiple domains in a development ecosystem that is constantly evolving is maddening ya know, quot10 years of experience vs 1 year of experience 10 timesquot Node js hasn39t even been around for 10 years which is funny considering I have seen job postings actually asking for 10 years experience with it I understand that following evolving technology is a challenge, and after 20 years I can tell you that by the time you get completely comfortable with any quotfull stackquot it will be less relevant beca use technology is always advancing Nothing will change that, it39s just how things work However, you can39t really have your cake and eat it too there Newer technology is less tested and therefore less secure, but older technology does not have as many features There39s always a trade-off there Anybody who claims otherwise is selling you something I am sold on Node JS if your application is into building high scalability networking applications , Node JS is the way to go in 2015 No wonder why so many startups and large corporations are adopting it C, Java, Ruby and Python havew their place in their respective domains New companies and products will be getting built on wide variety of languages I predict ROR adoption would still be high in coming years for building web applications simply because ROR developers are easily available and time to market is so small Excellent article though Tomislav So true My job is the maintainance of legacy apps usually SQL Server dB39s ms access or pop fronteds These were usually made by quotthe grandson who is good with computersquot Kind of guy No foreign keys, but custom date time functions Your post is my sentiment exactly I find Java very unproductive and very expensive for a lot of low level tedious work C is for programmers who can handle memory access pointers Most corporate programmers cannot Back in the day you had PL 1 and C for software engineers and COBOL for information technology programmers Gracias this is so helpful as i am going to make a heavy-computation enterprise application i think i39ll try node js on other application for now, i39ll use ruby on rails When this article was written Thanks for this article I think than the argument of same langage for front and dev is the worst I can liste or read Organized good coding with js is the more horrible things append in a team I work since last year on backend project and where this should be coded in some times with mature framework like django it took too much time understand hundreds bugs Where mongodb feels cool Nunca I realy thinks than nodejs is a big joke and not So cool The package manager give us some cool package to patch and hide the bad side of node but there is nothing to do about the callback hell Finally the code looks like a big sand box than i hatte to open a file for debug or add some lines of code So my conclusion is than for small app why not but for big and evolutive project not use nor nodejs and mongodb Regards This is a fairly ill-informed comment as ES6 was alive and well as at a year ago Besides the OO from ES6, there is also TypeScript which adds even more enterprise-level OO to JavaScript Like is compiled, TypeScript may also be quottranspiledquot to Javascript NodeJS allows for pretty much of all this now with an even still better utilization of server resources and no OS lock-in Think cutting your infrastructure costs by 2000 because you really shouldn39t need to scale too vertically or pay for that license per node Fi ntech companies like Paypal are happily doing great things with node as well so I highly doubt this comment of yours comes from a place of non-ignorance about what NodeJS eco-system truly offers the enterprising product David M Tromholt Yeah it would be nice with a date I assume they don39t show it because they know how biased people are towards new information but it doesn39t make much sense to hide it in an article about a fast growing technology Hi Avinash, Can you please eloborate little more on your statement I am trying to understand more on this Would node be a bad idea for something like 9gag then Would you need to do any image manipulation on a different server to prevent blocking Hey Tomislav, Great article I wanted to know that if suppose I want to get external hardware output in my app, e g, scanner or e-signature if user is doing e-signature or getting scanned copy from scanner , then can i get directly in my app it will be like an api call as we do in Java. 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In a move that might appeal to a select number of its clients, broker technology provider, Panda Trading Systems Panda TS , issued a company announcement revealing that it will offer real-time data feeds for weekend trading on OTC-assets for major FX pairs gold to brokers using the company s feed or binary options platform POLARIO. The company has already been providing a Bitcoin data feed over the weekend alongside select stock offerings from the Middle East With the addition of FX, the firm will provide an opportunity to its brokerag es to launch 24 7 trading. In contrast to existing offerings on the market, Panda TS provides real-time data which takes into account the developments over the weekend which can affect the forex market. Panda TS partnered with two Asia-based institutional dark pools that will be providing liquidity over the weekend to MT4 brokers The company is working to further assist FX CFD brokers in integrating and hedging their trading risks throughout the weekend using the OTC trading flowmenting in the company announcement, Panda TS s Co-Founder and COO Maor Lahav said, We re excited to announce yet another first to the market with 24 7 trading on FX and Gold Our continual focus is on supporting our clients by providing the highest quality tools they need to increase conversions, boost trading volume and strengthen their brand equity. The company announced that it plans to continue rolling out more assets for weekend trading in the near future. A seven day trading week has been in place around th e FX industry for some time as one of the major FX brokers, OANDA, was offering weekend trading However prices were not updating real-time and due to arising risk management challenges surrounding the Monday open, the company chose to discontinue its weekend trading offering last year. Several binary options technology providers have introduced trading over the weekend, however the expiration time frames for the binary options which they provide is usually weekly This means that a trader can still place a trade on the weekend as the market is closed, but the expiration time for the binary option he has purchased is on Friday. NFA FIFO Rule for FOREX. NFA FIFO Rule for FOREX. As you are all aware the NFA has made a new rule that prohibits registered Forex Dealer Members from carrying offsetting positions past end of day no - hedging The rule will also require all positions to be offset in the order they were opened beginning August 1, otherwise known as First In First Out FIFO There has bee n wide speculation among trade groups and more specifically Non Regulated Forex Brokers offshore what these changes may bring, to clients and Expert Advisors Below is an email generated by the NFA to each of its Members, assuring that indeed it is not the interest of the NFA to eliminate vital risk management tools like Stop Loss and Take Profit orders Furthermore, they will discipline any Member that is misleading investors with false information It is of PFGBEST s and the NFA opinion that clients be able to continue to use these order types as a means of risk management. The No-Hedging rule has been in effect since May 15, and as many of you can attest the implementation of this rule by PFGBEST has had little affect on client strategies The FIFO rule implementation on the other hand will likely cause most NFA Regulated FDM s to change the way their MetaTrader 4 platform operates because the MT4 Backoffice doesn t have the flexibility to offset positions in a FIFO manner as required by the NFA and retain all order functionality There have been parties who have propagated fear among investors about not being able to use Stop Loss and Take Profit orders BEST Direct MT4 and PFGBEST made a decision 1 years ago when we began integrating our Straight-Through-Processing environment to our proprietary Backoffice This will allow us to comply with regulations and continue to offer BEST Direct MT4 in the capacity we do today Clients will be able to continue to use their Expert Advisors and trading strategies with out having to make any adjustments Stop Loss and Take Profit orders will be fully functional, including Trailing Stops. PFGBEST will be holding Webinars to educate clients on the process that will be in place in our Backoffice Please feel free to join us to fully understand how PFGBEST is approaching this issue Clients of PFG will be notified by their brokers and by email of all upcoming instructional Webinars We look forward to continuing to offer MT4 in a capacity t hat gives clients the tools to remain successful within a stringent U S regulatory environment. To NFA Member FDMs. Re Communication with the Public Relating to NFA Compliance Rule 2-43.NFA has become aware of false or misleading blog entries and e-mails to customers stating or implying that NFA has banned stop orders and limit orders As you know, Compliance Rule 2-43 b does not prohibit either type of order but simply requires that executed stops and offsetting limit orders be applied to the oldest open position or, at the customer s direction, to the oldest open same-size position. Please ensure that neither your employees nor any firms or individuals that introduce forex business to or manage forex accounts carried by your firm are spreading misleading information about the effect of Compliance Rule 2-43 As you are aware, under NFA Compliance Rule 2-36 d , an FDM is subject to discipline for the activities of persons who solicit, introduce, or manage customer accounts Therefore, NFA wi ll not hesitate to file an enforcement action against any FDM with an introducer or account manager that initiates, spreads, or condones statements that convey false information. Tuesday, 27 March 2012.Guaranteed Winning Betfair Strategies. It s not too often that I bother to look at the stats page on my blog, but I couldn t help noticing that one of my most popular posts was that concerning tennis - which is something of a surprise considering this is essentially a football blog However, this same post keeps getting regular hits day after day, week after week. There can only be one reason for this regular traffic to this page it s certainly not the content as anyone reading it will instantly know that I am something of a tennis trading novice, so it can only be down to the title of the post. Top Tennis Tips. Hmm, I suppose this shows the importance of a good title as it can increase traffic considerably This simple phrase is obviously being googled and my unassuming little blog is getting hits as a consequence. This current post has nothing whatsoever to do with winning Betfair strategies, I should make that clear - but it will be interesting to see if the title makes it more popular than it deserves to be over the course of the next few weeks. I suppose the worrying thing about all this is the type of searches that might be made that will result in my Famous Genitals post popping up in Google The mind boggles If this post should move up and start heading my top four, then I may have to remove it. My PL for tonight and last night is undeniably pathetic but, as always, there is some interest behind the puny figures I won this evening and lost last night, but funnily enough I was more pleased with last night s trading than I was this evening s. Last night, after my normal trading of the Unders market, in the second-half, with Man Utd pressing, I assumed a second goal would be scored and so layed 0-0 for 60 This wasn t a standard lay however My intention was to use 200 scalps when the risk was low to steadily lower my potential red as the game progressed, while leaving the full liability in-play during parts of the match where goalmouth action was taking place My initial potential red was over 220 and I slowly worked this all the way down to 131.I think this strategy works quite well, and there were several chances for me to have won my bet outright last night Next time, I need to better match my liability with my red reduction stake so that by the end I will effectively have a scratched trade if no goal is scored This is a decent low ish risk method of laying the current scoreline, with a decent upside. BTW, the Bundesliga winner market on my PL was part of a dutch that I did right at the start of the season also did one on the EPL Presumably some of it has now been settled as there are teams that cannot mathematically win anymore. Overall, I have to conclude that this month has been something of a disappointment I started the month really well and thought I was going to be heading for a 2,000 month, but it soon turned a bit pear-shaped I haven t had a losing month for seven months straight, and this month will also be profitable - but I can t help feeling rather disappointed by the way it s ending as it s all been a bit flat. I m going out on the piss tomorrow night so there will be no trading. Football 2 29 Tote Total PL 2 29.Trade With A High Probability Of Success. In this edition, we take a look at the status of our existing SP 500 SPX case study, and we look at how easy it is to trade with a high probability of success. The purpose of this article is purely for education, we encourage that you follow this trade on paper or through a virtual account no real money We will focus our education on trading with stock options Our education material is focused on US Equities. In this article we are discussing how to trade with a high probability of success using our original case study posted here in which we entered into a trade for an educati onal case study on the SPX with a 95 probability of success, and an expected rate of return of 16 in 9 days, almost 2 ROI per day WOW. Here is the original risk graph, take a look at the chart below. Sell 10 X OCT Wk4 1775 Put. Buy 10 X OCT WK4 1770 Put. As mentioned in the original post, the trade profits so long as the SP 500 SPX remains above the 1775 area or thereabouts by options expiry which for these options is around the corner 24-Oct-2014.Lets take a look at the current risk graph of this position. From the chart above, you can see that our 1775 level is now just below the 2 standard deviation move, as compared to previously at the entry of this trade, this level was at the 1 5 standard deviation level click this link to read the original post to better understand why the standard deviations are important. At the time of entry 15th Oct 2014, the options prices were as follows. You can see that we simultaneously sold the SPX OCT WK4 1775 Put for 11 35 and purchased the SPX OCT WK4 177 0 Put for 10 65 to be used as protection all of which is explained in the original post This allowed us to take in a credit of 70 per contract, as you can see we have traded 10 contacts, therefore the premium received for this trade is 700.The current options prices for the above position as at market close on 17th Oct 2014 are as follows. If we were to close this position we need to do the opposite of what we did at entry, we need to buy back the 1775 put option sold and sell the 1770 put option we purchased. Due to the current high volatility in the market, there is a wide bid ask spread as you can see above in the options prices We will use the mid-point also known as the model quote to estimate the prices at which we can close our position, most options platforms use a similar model to estimate the price of options. If we were to close our position today, we would buy back our 1775 put options for approx 2 55 originally sold for 11 35 , and we would sell our 1770 put options for 2 20 originally purchased for 10 65 Netting a total credit of 350 which is not bad for a 2 day high probability trade. However, there is no reason to close this trade at this point in time, unless one would like to lock in the current profits and walk away There are 7 days remaining in this trade, during which the options will decay rapidly including over the weekend , and so long as SPX remains above the 1775 level, this trade is in a good state particularly as SPX has risen slightly and therefore the 1775 put option we sold has a 95 probability of expiring worthless allowing us to potentially keep the total premium originally received with this position. So, is there a way to reduce the current risk on the table 4,300 , potentially increase or lock in profits the only reason I will do an adjustment. Now that the SPX has risen slightly, this might mean that there is a demand for call options, lets see if it is worth selling some call options again with protection of-course. Lets take a look at the current chart of the SP 500 SPX taken at the end of market close on 17th October 2014.As mentioned in my original post to trade with a high probability of success, when selling an option always with protection as will be explained soon we should ensure there is a high probability of that option expiring worthless allowing us to keep the entire premium collected. A 1 5 standard deviation move upward in the SP 500 SPX would be around the 1955, 1960 area Therefore we might look to sell a call option at one of these levels and simultaneously buy a higher strike call option for protection in case SPX rises dramatically Similar to how we constructed our put credit spread in the original post. We can see from the above price action of SPX, there is still a good level of resistance before SPX reaches the 1955 level There is the previous pivot low from the 7th Aug around the 1904 level marked by the horizontal yellow line , which coincides with the 200 day moving average as denoted by the da rk red line, as well as the 30 day moving average as denoted by the green line The 21 day moving average white line will also act as resistance should SPX continue to rise Given the various resistance levels possibly preventing SPX reaching the 1955 level, this level might be a good area to sell a call option with protection as mentioned above. If we adjust our current SPX trade to add on a call credit spread, the trade would look something like. This adjustment brings in an extra 170 of credit and therefore potential profit, should SPX stay between 1775 1955 within the next 7 days The risk has thereby also reduced by the same. This strategy is known as an iron condor. We now have 4 legs in this trade as shown below. Two legs options as marked with the green border for our original position, and two additional legs options as marked with the blue border as our current adjustment. We could in fact also look to close the existing put option spread contained within this 4-legged trade and sell another put option spread slightly higher inline with similar risk parameters as in the original post this method is known as rolling up our put spread as an adjustment. Selling the 1800 1795 protective put put spread brings in a total credit of 800, as shown below. The 1800 put is close to the 2 standard deviation move down in SPX, which means the 1800 put option has close to a 95 probability of expiring worthless, allowing us to keep the entire premium collected, which in this case is 800.The trade would look something like this. This trade would profit should SPX remain below 1995 and above 1800 within the next 7 days, allowing us to retain the total premium of 1320, resulting in a return of investment of more than 35 in just 9 days, almost a return of 4 per day incredible with a high probability of success. The 1,320 premium is made up by the 520 received for the call credit spread and 800 received for the put credit spread, with a current profit of 350 from our original put credit spr ead Note that none of this profit has been locked in, our total risk on this trade is 3,680, as there are 7 days remaining in this trade and SPX can go in either direction up down, including outside of our range resulting in significant losses This is most definitely an advanced strategy that requires continuous monitoring and awareness of how to make further adjustments if necessary. The other concern I would have with this position is that the upper boundary the call spread is only just above the 1 standard deviation move, this may give us a little trouble, therefore one would need to monitor this trade closely perhaps even during market hours intra-day. That s it for this edition, we have covered a lot Remember this material is for educational purposes only. If you have any questions or comments, feel free to add them below All comments are moderated, generally visible within 24 hours, unless deemed inappropriate. Stay tuned for the next edition. To Your Success.2014 options-trading-stra tegies, please read our disclaimer. Forex trading 1 hour chart. For instance if you like to trade the 15 minute charts, you could use the 1 and 4 hour charts as well to indicate the overall trend If the trend is upwards on both the A lot of traders that first start, find that they feel more comfortable trading on the 1 hour chart This is a longer time frame, but not as long as the 4 hour frame RoboForex Forex Trading for real robots Chart EURUSD, quotes EUR USD You have chosen currency EURUSD and the timeframe is 1 hour Economic. Oct 17, 2013 DailyFX - Forex Trading News and Market Analysis After all, a four-hour chart just shows two bars for each trading session, so traders time means that we re seeing candles close at 5, 9, and 1 AM and PM based on ET Jul 29, 2014 If you are trading less than 1 hour a day, then you really should only Learn Forex Changing the Time Frame on a Marketscope Chart FXCM Aug 15, 2014 My Favorite Forex Trading Strategy on the 4 Hour Chart EURAUD time frames to include the daily, 4 hour, 1 hour, and 15 minute charts. May 10, 2013 Whether it s a 1 hour, 4 hour or daily chart, each price bar on the chart shows The Holy Grail Of Forex Trading Strategies Daily Chart Time May 22, 2012 I recommend my dead simple and highly profitable free Forex Price Action I now call 1 hour charts short term Charts and never even look at Mar 21, 2011 How to Trade the 1 Hour Chart In this video tutorial Peter shows you how to FOREX Presentation with Peter Bain - How to Trade the 1 Hour. Oct 11, 2013 1 It is worth watching the 200 EMA with almost any strategy Several traders who set out to trade the 4 hr or daily charts do not always realize. Expert Advisor Mt4 Code For Trading Review. An skilled adviser may be a piece of package written specifically for the Meta Trader Platform associate skilled adviser will simply advise traders that trades to create or may be programmed to mechanically execute the trades on a live account skilled advisers area unit terribly versatil e items of package which will take any info under consideration thats out there on the meta trader platform theyre written in their own proprietary artificial language known as Meta Quotes Language Version four. Click Here to Download A NEW Trading Tool and Strategy For FREE. Its suggested to check and optimize skilled advisers within the Strategy tester The skilled Advisors from the library may be accessed from the Meta Trader four platform and therefore the Meta Editor development surroundings skilled advisers area unit programs that permit automation of the analytical and commercialism processes within the MT4 platform to make associate skilled adviser or Expert , the skilled written material program Meta Editor needs to be opened from inside the MT4 platform. mt4 programming pdf. super trend profit forex indicator. undock chart code mt4.More from the nerds. Many of the credit card offers that appear on this site are from companies from which NerdWallet receives compensation. The results o f our card comparison and finder tool, card assessments, and reviews are based on objective quantitative and qualitative analysis of card attributes They are not affected by compensationpensation may impact which cards we review and write about and how and where products appear on this site including, for example, the order in which they appear. While we try to feature as many credit cards offers on our site as we can maintain 1,700 and counting , we recognize that our site does not feature every card company or card available on the market. Additionally, our star ratings are a mix of user feedback and NerdWallet s independent evaluation which are independent of compensation. For a list of all of our advertising partners, click here. The Best Brokers for Options Trading Online. Our Company History. Nalco was founded as National Aluminate Corporation in 1928 through a merger of Chicago Chemical Company and Aluminate Sales Corporation, two Chicago-based companies selling sodium aluminate to tr eat water Chicago Chemical Company sold mainly to municipalities and industrial plants for boiler feedwater treatment Aluminate Sales Corporation sold to the railroads to condition water used in steam locomotives. For additional information about Nalco through the years, click on one of the links below. National Aluminate Corporation is incorporated in Illinois on May 1 The company results from the union of two companies with Chicago roots Chicago Chemical Company and Aluminate Sales Corporation. National Aluminate Corporation purchases Paige Jones Chemical Company of New York With this transaction, National Aluminate Corporation acquired the equipment and chemical rights to supply water treatment chemicals in convenient and easy-to-feed ball briquette form This resulted in a large increase in water treatment business. National Aluminate Corporation becomes a publicly traded company with an offering of 127,000 shares of stock. Realizing that foreign nations lag behind America in the convers ion from steam to diesel locomotives, National Aluminate Corporation exploits the great potential to sell boiler treatments abroad by forming an Overseas Division. First Foreign subsidiary, Nalco Italiana, is founded to meet growing European needs. National Aluminate Corporation shareholders approve a name change to Nalco Chemical Company. Nalco forms Nalco de Mexico, S A headquartered in Mexico City A major share of the business will service Pemex, Mexico s national oil industry. Nalco enters into a joint venture with ICI of Australia and New Zealand, Ltd to form Catoleam Pty Ltd in Australia. Nalco develops Material Safety Data Sheets to provide customers with handling information for hazardous substances. Nalco s corporate headquarters move from Chicago to Oak Brook, IL. ORS-419 is used in the tires of the Space Shuttle Columbia The Nalco product is the only non-silicone product of its type on the market approved by the space shuttle tire s manufacturer. Nalco breaks ground for a new 300,00 0-square-foot trio of headquarters buildings in Naperville, representing an investment totaling 90 million. Nalco introduces the PORTA-FEED reusable container system, the most advanced liquid chemical handling system yet introduced. Nalco leads the chemical industry in the development of CAER Community Awareness and Emergency Response , a forerunner of the Emergency Planning and Community Right-to-Know Act of 1986 and the CMA Responsible Care initiative. Nalco consolidates groups from the Energy Chemicals Division and Oil Field Services Division to form a new Petroleum Chemicals Division to be headquartered in Sugar Land The new Petroleum Chemicals Division will include Visco Chemicals, Refinery Process Chemicals, Additives, Adomite Chemicals and Gas and Oil Handling Chemicals Groupsbining the best of both companies, Nalco and Exxon Chemical Company announce the formation of Nalco Exxon Energy Chemicals, L P to provide products and services to all facets of the petroleum and natural gas industries. Nalco reports that 1997 was a record-setting year for sales and earnings, rising 10 percent to 1 43 billion, with improvements reported by all divisions. STABREX biocides are chosen as one of the year s most technologically significant products by RD Magazine It is the first industrial biocide modeled after naturally occurring antimicrobials. On June 27, Nalco enters into merger agreement with Suez Lyonnaise des Eaux, a 32 billion company with more than 200,000 employees worldwide The move also integrates Suez Lyonnaise s existing water treatment group, Aquazur and Calgon Corporation, into existing Nalco operations to create a new Nalco. Nalco is renamed Ondeo Nalco, reflecting a new identity as a member of the Ondeo family of water-related businesses of Suez The Ondeo family also includes Ondeo Services, Ondeo Degremont, and Ondeo Industrial Services. Ondeo Nalco strengthens its leadership role in the petroleum industry as Nalco Exxon Energy Chemicals, L P NEEC becomes part of the company through redemption of Exxon Mobil stock in the joint venture NEEC generates 500 million in annual sales through its 1,800 sales people, engineers and other employees. USFilter and Ondeo Nalco enter into a strategic partnership providing equipment, chemicals and service to industrial customers. An investment group composed of the Blackstone Group, Apollo Management L P and Goldman Sachs Capital Partners buy Ondeo Nalco. Nalco Company, a recognized symbol of strength around the world, unveils new logo. Nalco returns to trading on the New York Stock Exchange under its old NLC ticker symbol following an Initial Public Offering on November 11, 2004.Nalco s global sales exceed 3 billion for the first time in company history. Nalco announces 3D TRASAR technology, the most comprehensive approach to cooling system management available It provides the ability to monitor and control cooling water systems in real time, keeping these vital systems operating at peak efficiency regardless of demands. A series of secondary stock offerings in the following years eliminates the investor group stake in Nalco in early 2007.Nalco purchases majority share of Mobotec and enters air pollution control market as Nalco Mobotec. J Erik Fyrwald named Chairman, President and Chief Executive Officer. How to Trade with Price Action. Love price action Want to learn more about trading with price action Start here Everything TSR has on price action, at your fingertips. Trend Bar A Simple Way to Look at Price Action An intuitive concept for reading price. Trend Bar Failure A simple and versatile price pattern from my Day Trading with Price Action series. Inside Bar for Day Trading Futures The classic low-risk bar pattern in the right context. Inside Day NR4 ID NR4 A low-risk volatility price pattern from Toby Crabels Day Trading with Short Term Price Patterns and Opening Range Breakout. NR7 Trading Strategy A popular and simple low-volatility price pattern. Pinocchio Bar Trade Setup Pin Bar A classic f ake-out bar pattern that traps traders out of a market reversal. Yum-Yum Continuation Pattern A reliable continuation pattern that uses the nifty concept of bar range expansion. Popgun Bar Pattern A pattern for finding impulse Elliot waves. Three-Bar Inside Bar Pattern An adaptation of an inside bar to add context and confirmation. Three-Bar Reversal Pattern for Day Trading Modifying the three-bar reversal pattern for lower frequency, but higher probability trading. Trading Consecutive Up Down Bars An clear price pattern that causes traders euphoria or not. Retrace Day Trading Setup A day trading strategy from Thomas Bulkowski author of Encyclopedia of Chart Patterns and Encyclopedia of Candlestick Charts. Exhaustion Gap Trading Strategy for Reversals A gap trading technique for swing traders. Price Action Pattern Indicator A Ninjatrader indicator to help you find Pin Bar, ID NR4, Three-Bar Reversal, Hikkake, and Three-Bar Inside Bar. Price with Volume. Price Action with Minimal Indicators. More Resources for Picking Up Price Action. A 5-Point Plan for Price Action Traders Who Want Consistent Results. Futures and forex trading contains substantial risk and is not for every investor An investor could potentially lose all or more than the initial investment Risk capital is money that can be lost without jeopardizing ones financial security or life style Only risk capital should be used for trading and only those with sufficient risk capital should consider trading Past performance is not necessarily indicative of future results. The Four-Hour Trader, A Full Trading Plan. Traders can implement a well-heeled plan taking only four hours per week The four-hour chart can be ideal for Forex Traders looking to trade around the clock We outline a full plan based around Price Action that traders can begin using today. All of the sudden, the world has gotten very small and life is moving faster than ever before. The internet presents a lot of benefits to the human species but time management is not one of them As competition for page views, viewer numbers, and attendance continues to heat up, very little in this life emphasis a slow and steady approach. But to the trader, in many cases, that is the best way to go about speculation in markets Slow, steady, and consistent. But being there as a trader, and getting there as a new speculator are completely different markets In this article, were going to outline a complete trading plan that will take less than four hours of a traders time each week And further, this is an approach that can be focused on longer-term moves, and swings. If you have a day job, or any other pre-existing commitments that limits your time on charts, this is an approach that can offer quite a few benefits. The Center of the Approach. The 4-hour chart plays a special role in the FX market. Most equity markets are open between 8 and 9 hours each day, and as such, the four-hour chart might take on less importance After all, a four-hour chart just shows two bars f or each trading session, so traders might as well just look at the daily chart. But in the Forex market, the four-hour time frame takes on special importance The market never closes, and traders are literally Trading the World The four-hour candle represents half of each geographic trading session Each of these sessions can take on markedly different tones, and that is where traders can look for potential opportunities. In the FX Market, traders are truly Trading the World. Traders can use the price movements and gyrations on these four-hour charts to analyze markets, and find potential pockets of opportunity. Watch for the close of each 4-hour candle that you can Using the New York close to define financial time means that were seeing candles close at 5, 9, and 1 AM and PM based on ET If youre using Central Time, thats 4, 8, and 12 AM PM while Pacific Time is 2, 6, and 10 AM PM. If youre busy at the time, Mobile Applications can generally offer you what you need to perform the analysis at the close of each of these candles. Traders can then take a ten-minute block of time upon the close of each of these four-hour candles to look for potential trade setups, while also using this as an opportunity to manage risk. If the trader is awake for four of the six four-hour candles that form each day that would mean that the trader would need approximately 40 minutes per day to analyze charts If time permits, an additional 10-15 minutes can be used at or around the daily close. The total time commitment required is 40-50 minutes each day, for a total of 200-250 minutes per week 240 minutes is 4 hours. Use Price Action to locate the strongest trends. Weve looked at how incredibly important price action can be to traders, and in Four Simple Ways to Become a Better Price Action Trader we walk through how easily the art of technical analysis can be performed without the necessity of indicators. Trends in markets can be easily graded and seen with price action by simply looking for charts to make progressively higher-highs, and higher-lows in the case of an uptrend , and lower-lows, and lower-highs for downtrends. Price Action can help traders locate the strongest trends. Higher-highs and Higher-lows denote an up-trend per Price Action. In the article Price Action, an Introduction we look at a way that traders can grade trends without the use of any indicator at all, using just past prices. Traders want to look to trade in the direction of these trends buying up-trends, and selling down-trends But, is it enough to just buy up-trends or sell down-trends and hope that they continue No Traders can use price action to appropriate their entries into these positions. Use Price Action to buy up-trends cheaply, and sell down-trends expensively. Once a strong trend has been located, the trader can then look to plot their entry by looking for a trigger into the position via price action. Once again, traders want to look to efficiently buy up-trends when price is cheap, or near support We looked at how traders can find this support in the article, Price Action Swings. Traders can look to buy up-trends after a recent swing low. Traders buying up-trends can wait for a higher swing low to form before entering. Traders can look for additional confirmation of the entry by looking to the price action candles that form at or around those swings. We looked at quite a few of these triggers in Trading Bearish Reversals for down-trends and The Hammer Trigger for Bullish Reversals for up-trends. Traders can look for bullish triggers at or around recently printed new lows. Use Stops and Limits to Enforce Favorable Risk-Reward Ratios. We talk about this a lot at DailyFX, and there is a reason for it Its important. One of the main premises of our price action education is that future prices are unpredictable, and as such, there is no such thing as a holy grail or cant lose strategy In the Traits of Successful Traders, The Number One Mistake that Forex Traders Make was found to be sloppy risk - reward ratios. We examined this topic, in depth, in the article How to Identify Positive Risk-Reward Ratios with Price Action. Traders can trigger positions with a set stop and limit order. By adding a stop and limit, and letting the trade work the trader eliminates the possibility of making a knee-jerk reaction that they may end up regretting It also enforces a favorable risk-reward ratio, and puts traders in the most promising spot to avoid the number one mistake that Forex traders make. Since traders are looking at their charts for each four-hour bar, they have built-in trade management for each position that they take on. Traders can use the close of each four-hour candle as an opportunity to adjust stops particularly the break-even stop , or to take profits while also looking to trigger new positions. Traders can take this a step further by trailing their stop in an effort to lock in gains in the event that the trend gets especially built-in We looked at this premise in Trading Trends b y Trailing Stops with Price Swings. Traders can lock up gains to maximize trends. Created with Marketscope Trading Station II.-- Written by James Stanley. James is available on Twitter JStanleyFX. To join James Stanleys distribution list, please click here. Would you like to get better with Price Action Please feel free to take our 15 minute course on the topic Youll first be asked to sign the guestbook, which is completely free and then you will be met with the video-based lesson via Brainshark. Weve recently begun to record a series of Forex Videos on a variety of topics Wed greatly appreciate any feedback or input you might be able to offer on these Forex videos. DailyFX provides forex news and technical analysis on the trends that influence the global currency markets. Options trading strategies that work Best Auto Traders Reviewed playsoccerwest. Options trading strategies that work binary option brokers reviews kaskus. 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Forex for Beginners Known Aspects of the Trade. by Forex Trading Strategies 360 staff on December 12, 2012.In this article, forex for beginners we will explain the 5 different aspects of the forex market at a beginner s level Those new to the trade game should be aware of these aspects, which include money manage ment, fundamental analysis, technical analysis, brokerage and trading psychology. The 5 Aspects Every Trader Should Know. Let s start with the fundamental analysis which is the process of market analysis that is done regarding real events and data that s related to currently traded currencies The analysis will be used not only in this market but can also be part of any type of financial forecasting or planning. Next comes technical analysis, which will refer to the process of market analysis that will rely solely on market data numbers such as complex and simple indicators, quotes, volume of demand, charts, and old data Like with fundamental analysis, this type of analysis is believed to be self-sufficient and needed in order for the trader to expertly execute currency trades. When it comes to the forex market, even if the trader is able to master every trading strategy used and is able to make accurate predictions for how the market will act in the future, they still won t be able to make a profit without proper money management In order to manage money in this market the trader will need a set of complex rules which they can develop in order to fit their specific type of trading style and the amount of money they have available for trading Knowing how to manage money will play a crucial part in making money in the forex market. Trading Psychology and Brokerage. While forex for beginners involves learning how to read the market and predict its future behavior, another important aspect for the newbie is to learn how to master their emotions, in order to keep their trading performance under control for intuition and mind For the trader, when it comes to keeping their emotions under control this will typically involve learning how to keep a balance between caution and greed It s important for the beginner to take it slow and to more than anything, take small steps and learn how the market works, watch how greed and being overly cautious can lead to financial ruin and to tak e the time to develop a safe trading strategy Some problems the trader will commonly deal with while executing trades are overtrading, greed, following another trader s strategy and lack of confidence and discipline. Like every professional, a trader will need tools to trade A vital tool in this market is an online forex broker, which involves a company that can provide real-time market info for traders and will bring their orders to the market When deciding on the right type of broker, the trader should look for a company that s trustworthy and reputable, doesn t take a lot of commissions, executes their trades in a quick and efficient manner, and provides real time quotes and one that supports the deposit and withdrawal methods the trader can use. 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E g the license of the American futures market regulator NFA is one thing, while the license of Antigua or Mauritius is another. There is a great amount of regulators in the world issuing broker licenses, and with striking and essential differences between them Therefore, a trader should know that licenses issued by different regulators are not equal value and significance E g the license of the American futures market regulator NFA is one thing, while the license of Antigua or Mauritius is another. That s why different broker licenses are rated differently in the forex broker rating The most authoritative broker licenses have 100 points the licenses of state bodies regulating the market have 50 points non-state self-appointed market regulators with no influence on forex brokers have 10 points. A broker s license is a necessary but not a single argument for opting for a certain broker and opening a real money account with this company. We would like to warn novice forex traders against thinking that a broker s license is a cure-all and that you won t face any problems while staying with this broker When making a choice of a broker be sure to consider the whole complex of the forex broker rating criteria, this is the way the professional traders act. The most authoritative licenses for the brokerage companies on the global level are. NFA National Futures Association. CFTC Commodity Futures Trading Committee. Great Britain FSA The Financial Services Authority. Cyprus Securities and Exchange Commission. FINMA Swiss Financial Markets Authority. BaFin Bundesanstalt fur Finanzdienstleistungsaufsicht. SEC The United States Securities and Exchange Commission , FINRA Financial Industry Regulatory Authority. SIPC securities Investor Protection Corporation. Stock market investment in malaysia and singapore neoh soon kean. Watch a Movie Dur ing Treatment. Nitrous Oxide Laughing Gas. Oral Conscious Sedation. 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Test your tradin g ideas in real time in today s market - without risking your own money. Gain real-time, no-cost trading experience - and see the power of fully automated trading firsthand. Explore new markets and new strategies - without risking a cent. No offer or solicitation to buy or sell securities, securities derivative, futures products or off-exchange foreign currency forex transactions of any kind, or any type of trading or investment advice, recommendation or strategy, is made, given or in any manner endorsed by any TradeStation affiliate and the information made available on this Website is not an offer or solicitation of any kind in any jurisdiction where any TradeStation affiliate is not authorized to do business, including but not limited to Japan. Past performance, whether actual or indicated by historical tests of strategies, is no guarantee of future performance or success There is a possibility that you may sustain a loss equal to or greater than your entire investment regardless of whi ch asset class you trade equities, options futures or forex therefore, you should not invest or risk money that you cannot afford to lose Options trading is not suitable for all investors Your account application to trade options will be considered and approved or disapproved based on all relevant factors, including your trading experience Please click here to view the document titled Characteristics and Risks of Standardized Options Before trading any asset class, customers must read the relevant risk disclosure statements on our Other Information page System access and trade placement and execution may be delayed or fail due to market volatility and volume, quote delays, system and software errors, Internet traffic, outages and other factors. TradeStation Group, Inc Affiliates All proprietary technology in TradeStation is owned by TradeStation Technologies, Inc Equities, equities options, and commodity futures products and services are offered by TradeStation Securities, Inc Member N YSE FINRA NFA and SIPC TradeStation Securities, Inc s SIPC coverage is available only for equities and equities options accounts Forex products and services are offered by the TradeStation Forex divisions of IBFX, Inc Member NFA and IBFX Australia Pty Ltd, ABN 84 142 210 179, holder of AFSL 363972.2001-2015 TradeStation Group, Inc. Forex Simulation Software. The foreign exchange also known as forex or FX market is the place where currencies are traded The overall forex market is the largest, most liquid market in the world with an average traded value that exceeds 1 9 trillion per day and includes all of the currencies in the world. 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Notice that the CaSe is important in this example On platforms that enforce case-sensitivity PNG and png are not the same locations.404 Errors After Clicking WordPress Links. When working with WordPress, 404 Page Not Found errors can often occur when a new theme has been activated or when the rewrite rules in the htaccess file have been altered. The Truth About Active Vs Passive Investing. May 3, 2012 4 40 PM. Academic research suggests that actively managed funds are not worth the effort or higher cost The marginally higher return is consumed by higher trading fees, management and slippage The paper, Luck Versus Skill in the Cross Section of Mutual Fund Returns is just one example of such research that reports such findings around the world Yet, is all active management the same Is there a way to separate a certain sub-group of active management that consistently outperforms the market. Active Management vs Closet Indexing. In the paper, The Mutual Fund Industry Worldwide Explicit and Closet Indexing, Fees, and Performance a distinction is made between funds pretending to have active management but are quite similar to an index such as the SP 50 0 ETF NYSEARCA SPY , and actively managed funds that use targeted stock picking Before we compare the two classes of active fund investing - is this really a global problem. Using the definition outlined in the paper that tracks the percentage of portfolio holdings which differ from the benchmark index called Active Share , and using the suggested 60 threshold as the cut-off for true active management - we get the following figures for active funds that are really closet indexers. USA - 13 of active funds. Canada - 40 of active funds. France - 63 of active funds. Poland - 81 of active funds. Total Non-US - 38 of active funds. Total incl US - 22 of active funds. Since the US has some of the lowest numbers of closet indexing, should we ignore this With 2,500 active funds in the US, that means 325 are closet indexers by the papers definition In addition to that, might we find superior performing funds by choosing among those with extremely high Active Share say more than 90 Let s see. Closet Index ing vs Active Stock Picking Returns. As a whole, only 45 5 of active funds were able to beat the underlying index when looking at global statistics according to aforementioned paper But what happens when we begin to separate funds into categories with relative degrees of closet indexing Remember that the percentage of Active Share is the amount of difference between fund and index 0 Active Share is a perfect mirror to the fund and 100 is completely different The numbers below are represent funds around the world. Less than 60 Active Share - only 23 5 outperform the market.60 - 90 Active Share - 42 5 outperform the market. Over 90 Active Share - 60 2 outperform the market. Can we go a step further By how much do these funds on average under - or out-perform the index. Less than 60 Active Share - under-perform by 0 13.60 - 90 Active Share - outperform by 1 63.Over 90 Active Share - outperform by 3 64.A previous paper using similar techniques entitled, How Active Is Your Fund Manager A New Mea sure That Predicts Performance adds a couple other performance boosting measures such as choosing from among smaller funds and among past-years top performers This gives an average outperformance of 6 5 annually over and above the index benchmark. An Individual Investor Testing The Theory. Below is my individual investor test of the theory I selected a high-yielding strategy that picks up a large amount of REITs, MLPs and other high-yielding products. To create a benchmark of sorts - I take the MLP universe of stocks and restrict it to companies trading at a minimum 5 per share and 50,000 shares daily This index is rebalanced annually in order to include newer firms It is equal-weighted Slippage of 0 5 will represent slippage plus trading costs Since there is no strategic targeting of stocks, there should be no advantage to more frequent rebalancing other than faster inclusion to our index and higher trading costs might erode value We will test this theory as well Chart compliments of Por tfolio123.CAGR total return 12 35 annual rebalancing. CAGR total return 12 6 semi-annual rebalancing. CAGR total return 12 3 quarterly rebalancing. CAGR total return 12 34 4 week rebalancing. Creating a High Active Share Portfolio. Next, I refine the rules with a couple of comprehensive ranking systems Portfolio Caf - Big Bad Yields These ranking system look for earnings and revenue growth, debt ratios, and deep value Furthermore, we will require a minimum of 100,000 shares daily to minimize slippage - although we will keep the 0 5 per transaction The first test will be use the same annual rebalancing While we use some strategic timing rules, I will not include market timing that is used in the Portfolio Caf model We stay 100 invested at all times We only keep the top 15 stocks - which in itself will give us high Active Share Below is a description of 5 sample picks as of April 1st 2012.Bullion dealer to start gold trading on Internet in India. Submitted by cpowell on Thu, 2007-11-22 02 35 S ection Daily Dispatches. By Suresh P Iyengar. The Hindu, Chennai, India. Wednesday, November 21, 2007.MUMBAI, India -- RiddhiSiddhi Bullions Ltd RSBL , one of the largest bullion dealers in India, is set to launch online bullion spot trading. The initiative will be done through a newly floated company, RiddhiSiddhi SPOT Spot Precious-metals Online Trading Ltd. We have already started demo trading and the venture will go live in the next 10 to 20 days The company has invested about 1 million in the new initiative, said Mr Prithviraj Kothari, Director, RiddhiSiddhi Bullions Ltd, which is an authorised participant AP in all gold exchange traded funds ETF in India AP provides guaranteed liquidity for ETFs. To begin with, trading can be done at Mumbai, Ahmedabad, and Hyderabad, where delivery centres have been established. By April 1, Chennai, Coimbatore, Bangalore, Mangalore, Delhi, and Indore can also log on to the platform, when delivery centres will be in place there. We have received membership from 250 jewellers all over India Broking firms have also shown interest We expect to have 6,000 members within a year of operations, Mr Kothari said. RSBL registered a turnover of Rs 2,340 crore in 2006-07.Members have to deposit Rs 1 lakh and will be allowed to take position up to 2 kg The trading unit for gold would be 1 kg and 30 kg for silver. Trading will be on T 2 cycle at the end of third day positions have to be squared off by giving or taking delivery and will become T 7 at a later stage. The RBI has already allowed trading up to T 11 Trading will be open from 10 a m to 9 p m The terminal will display gold rates 24 hours. Typically a trading terminal will display London Metal Exchange quotes and the equivalent conversion relevant to the particular trading centre. Price limits on both buy and sell side can be preset by the traders. Deliveries will be of London Bullion Market Association and RBI-approved gold and silver bars. RiddhiSiddhi move will bring in a much needed transparency in spot price discovery Jewellers can also take advantage of price difference in various states due to different state taxes if it can take delivery in that particular state where taxes are low, said Mr Vijay Trivedi, Associate Vice-President, Commodity Research. RiddhiSiddhi has roped in Axis Bank and Union Bank of India as clearing agents for the trading, according to Mr Kothari. Vancouver Resource Investment Conference. Sunday-Monday, January 20-21,2008.Vancouver, British Columbia, Canada. Forex trading forex quotes - Top 5 Binary Trading Brokers List. Exchange trading provider has Of the Is not allow the pepperstone mt4 The actual price, or free demo contest, stock in real time. 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Trading foreign exchange on margin carries a high level of risk, and may not be suitable for all investors The high degree of leverage can work against you as well as for you Before deciding to invest in foreign exchange you should carefully consider your investment objectives, level of experience, and risk appetite The possibility exists that you could sustain a loss of some or all of your initial investment and therefore you should not invest money that you cannot afford to lose You should be aware of all the risks associated with foreign exchange trading, and seek advice from an independent financial advisor if you have any doubts. Portfolio Hedging using VIX Calls.0 00 Commissions Option Trading. When the VIX is low, the negative correlation of the highly volatile VIX to the SP 500 index makes it possible to use VIX options as a hedge to protect a portfolio against a market crash. To implement such a hedge, the investor buys near-term slightly out-of-the-money VIX calls while simultaneously, to reduce the total cost of the hedge, sells slightly out-of-the-money VIX puts of the same expiration month This strategy is also known as the reverse collar. The idea behind this strategy is that, in the event of a stock market decline, it is very likely that the VIX will spike high enough so that the VIX call options gain sufficient value to offset the losses in the portfolio. To hedge a portfolio with VIX options, the portfolio must be highly correlated to the SP 500 index with a beta close to 1 0.The tricky part is in determining how many VIX calls we need to purchase to protect the portfolio A simplified example is provided below to show how it is do ne. A fund manager oversees a well diversified portfolio consisting of thirty large cap U S stocks For the past two months, the market has been climbing steadily with the SP 500 index climbing from 1273 in mid-March to 1426 in mid-May At the same time, the VIX has been drifting downwards gradually, hitting a five month low of 16 30 on 17th May The fund manager thinks that the market is getting too complacent and a correction is imminent He decides to hedge his holdings by purchasing slightly out-of-the-money VIX calls expiring in one month s time Simultaneously, he sells an equal number of out-of-the-money puts to reduce the cost of implementing the hedge. For simplicity s sake, let s assume the value of his holdings is 1,000,000.The SP 500 Index stood at 1423.The VIX is at 16 30.June VIX calls, with a strike price of 19, are priced at 0 40 each. June VIX puts, with a strike price of 12 50, are priced at 0 25 each. So, how many VIX calls does the fund manager need to buy to provide the nec essary protection. According to the CBOE Website, on average, the VIX rise 16 8 on days when the SP 500 index drops 3 or more This means that if the SPX move down by 10 , the VIX can potentially shoot up by 56 To play it safe, the fund manager assumes that the VIX will rise by only 40 when the SPX drops by 10 This means that, in theory, the VIX should rise from 16 3 to 22 8 if the SP 500 drops 10 from the current level of 1423 to 1280.When the VIX is at 22 8, each June 19 VIX call will be worth 380 3 80 x 100 contract multiplier.10 of the fund manager s portfolio is worth 100,000.Number of VIX calls required to protect 10 of the portfolio is therefore 100,000 380 264.Total cost of purchasing the 264 VIX June 19 calls at 0 40 each 264 x 0 40 x 100 10,560.Premium received for selling 264 June 12 50 VIX puts at 0 25 each 264 x 0 25 x 100 6,600.Total investment required to construct the hedge 10,560 - 6,600 3,960.Very Accurate Scalping Strategies With Bollinger Bands And Zig Zag. Scalping Wi th Bollinger Bands And Zigzag. Simple Scalping Using Candlestick Confirmation. Tonight i will share my tested scalping strategies with bollinger band and four zig zag One of the best pair on using this scalping strategies in eurusd, usdjpy, eurjpy This is my three favorite pairs But before we take action to trade with this accurate scalping strategy, money management still have to be applied on each entry lot and combined it with averaging 15-30pips per step. Here is screenshot below that how scalping strategies with bollinger bands and zig zag give us a accurate signals. ZZ 100 Yellow or ZZ 200 Pink Breakout Upper BB White Deviations 2 or Blue Deviation 3 TP 1 Median BB Blue Deviations 3 TP 2 Lower BB Pink Deviations 1 TP 3 Lower BB White Deviations 2.Can I start trading Forex with 1000 dollars as trading capital. Using 1000 as starting capital is very much on a shoestring Let s explore two types of money management on a mini account using this 1000 as capital. Risking 2 per trade. With 2 ri sk per trade, on a mini account 1 buck per pip would means that at most you can risk is 20 20 pips loss on a single trade In fact, I set the risk trade at 2 , because at 1000 with a 1 risk, there is nothing much you can do since you can only risk at most 10 pips on a mini per single trade and that number is only possible if your account will not drop below 1000 Therefore 2 risk trade on a 1000 is at least workable for some pairs Take note that pip figure will go down further if you incur more losses along the way using that 2 risk trade rule. Now breaking down to daily basis on your presumption of that out of 10 times, 7 are winners The trader did not mention what is the sequence because the sequence of winners and losers can have an impact of your dollar risk per trade because the MM we are using is 2 risk trade.7 winners out of 10 times, the first 2 were losses trade 1 is a losing trade -20 2 risk trade for trade 2 at 980 as capital on a 2 risk trade, you can only afford to lose 19 6 dollars trade 2 is a losing trade -19 6 960 4 left in the account for trade 3 at 960 4 as capital on a 2 risk trade, you can only afford to lose 19 20 dollars per trade and so on With this kind of scenario, it is even harder to achieve a higher of winners So it is highly unlikely you will achieve that on a consistent basis. Risking XX per trade instead of.7 winners out of 10 times, since you are risking in term of dollars value per trade, then the sequence of winners and losers does not matter. Now let s say you can consistently win 7 out of 10 times on a daily basis, and considering you make 10 on a single trade with risk reward at 1 1, that is a 40 profit net 4 winners 40 profit of a 1000 account 4 ROI on a single day Considering a 20-trading day per month, you would have achieve a profit of 800 40x20 if you can do it consistently In terms of , that is a whopping 80 ROI for the first month Not impossible, but you have to have a proven strategy and iron-clad discipline to do it Moreover , under this example, your strategy must not risk more than 10 per trade, which is also 10 pips. Sounds probable at first, but realistically for 1,000 as starting capital for Forex trading can be a tough job However, as traders, we always look at possibility So it is not entirely impossible especially for the second example. Trading Like A Sniper What It Really Means. About three days ago, I was given an interesting question by a student They asked the following. Out of curiosity, how many trades do you take in a month Is it like sniper trades, as in one trade a week or so. After reading the question, I realized they had a confused assumption about what it actually means to trade like a sniper There have been all kinds of articles written around this vein, such as trade like a sniper, not a machine gunner It should be known that if there are machine gunner traders out there, they are HFTs And FYI the top HFT firms are making millions, but I digress. There seems to be this confusion trading l ike a sniper means you only trade a few times a week, perhaps even a handful a month This is furthered by the idea of only trading on higher time frames, such as the daily and 4hr charts But this is highly inaccurate of what it means to trade like a sniper. Now, before we get into the subject and how it has nothing to do with time frames, Id like to share a few interesting facts about snipers. Most snipers going through training will fire 1000s of rounds This is referred to as their rounds down range training General estimates are about 1800-2000 rounds over a 35 day period If you do the math, thats about 50 shots per day every day for 35 days straight. Now try and bridge the gap for the daily chart trader that only does 2-3 trades per week, maybe 5-6 per month At that pace, a daily chart trader doing 10 trades per month on average would have to trade for 180 months or 15 years before they accumulate the same amount of basic training a typical sniper does in 35 days. There is a reason in s niper training you do so many shots in a day Because shooting only 2-3 per week doesnt build your skill set In fact, for 99 99 of all skill based endeavors executing something only 2-3x per week will not build your skill set Trading is no exception. You cannot fire three shots in a week and expect to be proficient You cannot do three free throws and expect to be a good free throw shooter Why would you ever expect this to be the same for trading However, doing something over and over again dozens of times a day does build your skill set. Keep in mind, a sniper doesnt just do their 2000 rounds and stop shooting from there They continually train day in-day out to sharpen their skill, shooting dozens of times per day Thus, before a sniper will ever be given that chance to make a single shot in a real world situation, they will have taken thousands of shots prior Food for thought. Sometimes you will have to pull the trigger quite often as a sniper Some examples of famous snipers in history.1 S imo Hayha had 505 confirmed sniper kills in the Winter War, which lasted only 100 days Do the math 505 kills over 100 days 5 5 kills per day Obviously quite active on a daily basis.2 Vasily Zaytsev over 225 kills over a 5 week period during the Battle of Stalingrad 225 kills 35 days 6 42 kills per day Again, quite active on a daily basis.3 Clive Hulme Fought in the Battle of Crete 11 days , and is credited with 33 confirmed kills of German Snipers 33 11 days 3 per day. What does all this mean When engaged in an active environment they can and will pull the trigger many times. Translating This to Trading. Anyone who is properly trained will find several high quality signals a day Only someone who is improperly trained will be unable to trade below the 4hr or 1hr charts. This idea of only trading on the higher time frames to be a sniper trader is a confused logic If you have setups according to your system, you pull the trigger period If that happens 1x day, or 10x day, its irrelevant And do you really think bank traders are being paid to sit on their hands all day to only trade 2-3x per week Do you think prop-traders are only pulling the trigger a few times throughout the week In what fantasy-land does that world exist. I consider myself a sniper in terms of trading I observe, I stalk, I study my targets, and when the opportunity arises, I pull the trigger On average, this happens to me 3-5x per day, sometimes over 10 trades in a really active day. If you are actively engaging multiple markets, there is no reason why you shouldnt be finding several high probability setups every day Even if you just focused on forex, across the most liquid pairs daily, you could easily trade several times per day. The Noise Argument. One thing commonly heard from the trade like a sniper camp is anything below the 1hr chart is just noise I have one thing to say to this. Put me in some strange country on a busy street where everyone is speaking a foreign language Most of what I will hear will be noise Now give me 6 months to learn that language, and it will no longer be noise, but a conversation full of information. What is the difference between the noise I heard earlier, and the conversations I clearly hear later Training What seemed like noise on that 30m or 5m chart will start to sound like a conversation one you can translate. You will not become a sniper if you are only pulling the trigger 2-3x per week To become one or a highly trained individual at anything , it takes thousands of reps And it should be known snipers become less accurate the longer the distance. The sniper difference comes down to training If you do trade on the daily 4hr TFs only, there are ways to accelerate your learning curve So consider alternative methods to building your skill set. New Options Trading Desk Launched by Raymond James. Raymond James has launched a new options trading desk bolstered by a 12 man team based in New York This team uses many types of option trading strategies in order to appr oach volatility as an asset class Trades will be executed agency-only and will promote alternative investment strategies and hedging for the benefit of their clientele This project has been highly researched by Raymond James and his associates which includes their senior managing director Dan McMahon. Raymond James has launch a strategic options desk that will approach volatility as an individual asset class and provide hedging and alternative investment strategies to its clients. The 12-strong New York-based team will be led by managing directors Ryan Sylvester and Adam Templeton, who report into senior managing director and director of institutional equity trading Dan McMahon. The team use a range of strategies using equity, index and exchange traded fund options to develop strategies to approach volatility as an asset class with trades executed on an agency-only basis To finish reading Raymond James launches strategic options trading desk click here. Dan McMahon believes that the extens ive growth of listed equity derivatives within the past ten years will enable their group to capture alternative investments strategies The investment group is comprised of highly skilled and highly experienced traders who have worked in this industry and with these forms of investments for many years. Free forex trading magazines. 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Are you using our service to try to duplicate our Stocks Trading Room Performance If you can - that is great however, trading signals are given in the live trading room based on trades that have gone through th e market a moment before moderators post their first winner alert. Stocks Day Trading Performance. By the time our Moderators give a trading signal in the Stocks Trading Room - Consider Long or Consider Short - and you the trader decides to execute a trade, the stock has already moved up or down because stocks do not stop moving or wait for you until you enter your position. Your Internet speed as well as the processor speed of your computer or laptop could effect your trade execution. Your Broker as well as your experience at Stocks Day Trading will have an effect on your individual trading performance. Focus on Your Trading Strategy. The reason we post our Stock Performance is simple - so you can see what is going on in the Stocks Trading Rooms and what our Moderators are doing on a daily basis We do not imply that Traders should focus on duplicating our Performance Moderators provide Stocks Day Trading signals and it s up to you the trader to make the trades. To view more about this Premiu m Service, access the Stocks Trading Room page. Money Manager Forex. Forex Managed Accounts from a Consistently Profitable Money Manager. Money Manager Forex is an online managed account service We manage your funds in the Forex Market. Managed forex accounts are becoming an increasingly popular way of accessing the forex market for retail investors, who have neither the time nor the expertise to trade their own account. An investment in a managed forex account provides investors with the ability to profit from the currency market. Your account is managed by professional money managers At the same time you have complete access to your investment, 24 hours a day. Money Manager Forex has created a managed forex account service which addresses all the challenges that investors face today. We provide investors with a low risk investment which aims to make absolute, positive returns regardless of market conditions It offers immediate access to your capital, safety of your investment, and added capi tal protection. The managed forex accounts are administered with very strict investment criteria. Risk management is a priority drawdowns and losses are minimised and returns are maximised. Money Manager Forex traders use the professional tools of fundamental and technical analysis in order to achieve consistently profitable results, month by month. For a detailed Presentation of our company and historical results. What is Forex Trading. The foreign exchange Forex market is a nonstop cash market where currencies of nations are traded, typically via brokers Foreign currencies are constantly and simultaneously bought and sold across local and global markets and traders investments increase or decrease in value based upon currency movements Foreign exchange market conditions can change at any time in response to real-time events. The main incentive of currency dealing to private investors and the attractions of short-term Forex trading are 24-hour trading, 5 days a week, with nonstop access to g lobal Forex dealers. Further incentives to Forex trading. An enormous liquid market making it easy to trade most currencies. Volatile markets offering profit opportunities. Standard Forex instruments for controlling risk exposure. The ability to profit in rising or falling markets. Leveraged trading with low margin requirements. Many options for zero commission trading. Forex trading education. The investor s goal in Forex trading is to profit from foreign currency movements Forex trading or currency trading is always done in currency pairs For example, the exchange rate of EUR USD on Aug 26th, 2003 was 1 0857 This number is also referred to as a Forex rate or just rate for short If the investor had bought 1000 euros on that date, he would have paid 1085 70 U S dollars One year later, the Forex rate was 1 2083, which means that the value of the euro the numerator of the EUR USD ratio increased in relation to the U S dollar The investor could now sell the 1000 euros in order to receive 1208 30 d ollars Therefore, the investor would have USD 122 60 more than what he had started one year earlier However, to know if the investor made a good investment, one needs to compare this investment option to alternative investments At the very minimum, the return on investment ROI should be compared to the return on a risk-free investment One example of a risk-free investment is long-term U S government bonds since there is practically no chance for a default, i e the U S government going bankrupt or being unable or unwilling to pay its debt obligation Please note that past performance is not indicative of future performance. When trading currencies, trade only when you expect the currency you are buying to increase in value relative to the currency you are selling If the currency you are buying does increase in value, you must sell back the other currency in order to lock in a profit An open trade also called an open position is a trade in which a trader has bought or sold a particular cur rency pair and has not yet sold or bought back the equivalent amount to close the position. However, it is estimated that anywhere from 70 -90 of the FX market is speculative In other words, the person or institution that bought or sold the currency has no plan to actually take delivery of the currency in the end rather, they were solely speculating on the movement of that particular currency. Because currencies are traded in pairs and exchanged one against the other when traded, the rate at which they are exchanged is called the exchange rate The majority of the currencies are traded against the US dollar USD The four next-most traded currencies are the euro EUR , the Japanese yen JPY , the British pound sterling GBP and the Swiss franc CHF These five currencies make up the majority of the market and are called the major currencies or the Majors Some sources also include the Australian dollar AUD within the group of major currencies. The first currency in the exchange pair is referred to as the base currency and the second currency as the counter or quote currency The counter or quote currency is thus the numerator in the ratio, and the base currency is the denominator The value of the base currency denominator is always 1 Therefore, the exchange rate tells a buyer how much of the counter or quote currency must be paid to obtain one unit of the base currency The exchange rate also tells a seller how much is received in the counter or quote currency when selling one unit of the base currency For example, an exchange rate for EUR USD of 1 2083 specifies to the buyer of euros that 1 2083 USD must be paid to obtain 1 euro. At any given point, time and place, if an investor buys any currency and immediately sells it - and no change in the exchange rate has occurred - the investor will lose money The reason for this is that the bid price, which represents how much will be received in the counter or quote currency when selling one unit of the base currency, is always lower th an the ask price, which represents how much must be paid in the counter or quote currency when buying one unit of the base currency For example, the EUR USD bid ask currency rates at your bank may be 1 2015 1 3015, representing a spread of 1000 pips also called points, one pip 0 0001 , which is very high in comparison to the bid ask currency rates that online Forex investors commonly encounter, such as 1 2015 1 2020, with a spread of 5 pips In general, smaller spreads are better for Forex investors since even they require a smaller movement in exchange rates in order to profit from a trade. Most Forex dealers, including easy-forex are compensated by the spreads that are embedded in the currency rates. Margin Amount to Risk. Banks and or online trading providers need collateral to ensure that the investor can pay in case of a loss The collateral is called the margin and is also known as minimum security in Forex markets In practice, it is a deposit to the trader s account that is intended to cover any currency trading losses in the future. Margin enables private investors to trade in markets that have high minimum units of trading by allowing traders to hold a much larger position than their account value Margin trading also enhances the rate of profit, but has the tendency to inflate rates of loss, on top of systemic risk. Leveraged financing, i e the use of credit, such as a trade purchased on a margin, is very common in Forex The loan leveraged in the margined account is collateralized by your initial deposit This may result in being able to control USD 100,000 for as little as USD 1,000 A relatively small market movement will have a proportionately larger impact on the funds you have deposited or may have to deposit This may work against you as well as for you You may sustain a total loss of the margin funds deposited and any additional funds deposited to maintain your positions. Five ways private investors can trade in Forex directly or indirectly. A spot transaction. A spot transaction is a straightforward exchange of one currency for another The spot rate is the current market price, also called the benchmark price Spot transactions do not require immediate settlement, or payment on the spot The settlement date, or value date, is the second business day after the deal date or trade date on which the transaction is agreed to by the two traders The two-day period provides time to confirm the agreement and arrange the clearing and necessary debiting and crediting of bank accounts in various international locations. To learn more about the topics mentioned in the above article, also look at Day Trading Leveraged Trading and Currency Pairs To find out more about Forex instruments offered by easy-forex read Online Forex Account. What is Forex Trading. Forex or foreign exchange is the speculative trading on the movement of an exchange rate between two currencies If say 1 is equivalent to 1 6 then the exchange rate of GBPUSD will be 1 6 If you believe that t he US economy will grow stronger than the UK then you could place a forex trade that the exchange rate will drop and if it does then you will make a gain, if it goes against you then you will make a loss. Forex market makers will quote exchange rates down to either 4 or 5 decimal places I e an exchange rate of 1 6 for sterling against dollar could be quoted as GBPUSD 16000.A movement of the 4th decimal place in known as a pip When you place a stake on a Forex market your stake will be multiplied by each pip movement So if you buy a forex trade with a stake of 10 in GBPUSD with a price of 16000 and sell at 16010 then you will make a gain of 100.Note however, that there is a buy and sell spread price so you will lose some of your gains to the spread See our Forex guide for more details on this. At 3DMarkets we quote exchange rates for over 37 currency pairs covering major and minor currencies. Why is Forex the most popular spread betting market.24hr trading With no stock exchange to limit t rading hours, at 3DMarkets we can offer you trading throughout the whole day and night from Sunday evening to Friday night Tight spreads Forex is a very competitive market place and therefore the spreads are some of the tightest across all the markets Our spreads start from 0 8 fixed To see how this compares take a look at our forex company comparison guide Tax free There is no capital gains tax to pay under current UK tax laws And unlike shares there is also no stamp duty to pay as you never own an underlying asset Instant returns Whatever gain or loss your position is at, when you close the trade your account balance is instantly updated There is no need to wait a settlement period before you see your returns Truly global markets Investors across the world are trading the same price without the need for a single exchange to support the price Price volatility opportunities A wide range of factors can influence the Forex price economic performance, political stability, central bank ann ouncements, national level events, impacts on dependent countries and of course, sentiment The resulting volatility in prices creates trade opportunities for those who want to take them. What platform do I use. The 3DMarkets Forex platform is available on web, mobile or download This one platform also supports spread betting and CFDs if you wish to trade other products See our forex platform guide for more info. How do I get started. Then choose which platform you want to use and download the 3DMarkets app if required Login, fund your account and away you go. Ten Great Trading Quotes. Whether you re new to trading or could just do with a refresher, nothing beats studying the greats And some of those greats have helpfully expressed their wisdom in well-turned, quotable phrases. For your delectation and education, here are ten of the best. You have to be okay with wins and losses You can t just be looking for the wins and, when the losses happen, you can t buy more and more because you re sure i t s going to bounce We call that revenge trading Josh Brolin. Brolin played ruthless top banker Bretton James in Oliver Stone s 2010 film Wall Street Money Never Sleeps In real life, Brolin made part of his estimated 35 million fortune trading, even founding the now defunct stock trading site MarketProbability. His top tip is to refrain from revenge trading becoming determined to punish the market for a loss, pouring more money into the same trade in a bid to recover, and even turn a profit, rather than just accepting the failure and moving on. A tempting course of action when counting the holes in your bank account, but it s more likely to amplify the damage than show the haters who s boss. Volatility is greatest at turning points, diminishing as a new trend becomes established George Soros. Possibly the greatest currency trader of all time plus hedge fund chair, noted philanthropist and a prolific writer and speaker - Soros ensured his place in economic history for his role in Breaking the Bank of England in 1992.As a man who makes his dime from volatility, he is well placed to comment on turning points The quote is a helpful reminder for less long-sighted traders than Soros that even the most volatile of markets will eventually stabilise. The secret to being successful from a trading perspective is to have an indefatigable and an undying and unquenchable thirst for information and knowledge Paul Tudor Jones. The Tennessee-born trader and investor was ranked by Forbes as one of the 40 highest earning hedge fund managers in the world in 2013 His no-nonsense approach to trading is grounded in minimising the role of ego. Jones is famous for testing his ideas before going all out - trying low-value trades until he s either been proved wrong repeatedly or been vindicated in his idea a more scientific method than many. He s also famous for reminding traders and wannabes that they need to be able to handle getting their butts kicked. It seemed glamorous when I used to go into work and get to be on a trading floor or see how the business worked a little bit before I ever understood what it was Erin Duffy. The only woman to make this list, Duffy worked at Merrill Lynch until being laid off in the 2008 financial crisis She then wrote a well-received novel based on her experiences - Bond Girling from a family that was heavily involved in New York s financial markets, Duffy was able to visit the trading floors as a child, where she became enamoured with the trading environment s mystique and glamour. She later learnt that what attracted her to the job in the first place was really a disguise for the reality of high stress and long hours. The game taught me the game And it didn t spare me rod while teaching Jesse Livermore. Livermore rose from farm boy to multi-millionaire during the early twentieth-century, gaining and losing several fortunes along the way Known as The Bear of Wall Street, he started trading in illegitimate bucket shops, before moving to New York. One of his central trading philosophies was that an individual s returns depend on how much they re willing to study the markets and economics If you put the work in, you can rely on your own judgement, rather than follow others advice. Win or lose, everybody gets what they want out of the market Some people seem to like to lose, so they win by losing money Ed Seykota. The psychological aspect of trading is well documented, and the possibility to make or lose large sums of money can amplify timeless human weaknesses like fear, greed and impatience Seykota expresses this in signature blunt, straight-forward style. Self-taught, Seykota s no-nonsense strategies have developed over four decades of solitary trading, vindicated by his status as one of the world s foremost traders. Despite preferring to work alone, Seykota has mentored other heavyweight traders, including Michael Marcus and David Druz Druz has praised Seykota for being willing to point out the personality weaknesses of his protegees with a view to improving their trading. We re not going to play a winning hand every day John Paulson. Paulson made the bulk of his fortune shorting the mortgage market before the 2008 crisis, when most thought it couldn t fail He s also the recipient of possibly the largest ever annual pay-out on Wall Street 4 9 billion. Paulson s grounded attitude to winning and losing will have served him well in maintaining a stoic attitude to the fluctuating fortunes of his own hedge fund After outstanding performance during the financial crisis, Paulson Co profits fell during 2011 12, before recovering in the last financial year. A great trader is like a great athlete You have to have natural skills, but you have to train yourself how to use them Marty Schwartz. Schwartz is unusual in that he made his fortune as an independent trader, after he became frustrated with what he felt to be a dead-end job working as a financial analyst. He says that a willingness to learn which trading style suits you, and adapt your trading in line, is one of the most important skills traders can learn The lesson didn t come easily It took ten years of trading for Schwartz to become successful, and he has spoken honestly about the difficulty of taking large losses in his early years. To be a good trader, you need to trade with your eyes open, recognize real trends and turns, and not waste time or energy on regrets and wishful thinking Alexander Elder. Elder s first career was as a psychiatrist, and as well as becoming a very successful trader, he is also recognised as one of the world s foremost experts on trading psychology An interna tionally bestselling author, with multiple books on trading, unsurprisingly Elder s trading advice focuses strongly on achieving a thorough psychological understanding of how markets work. He even compares losing during trading to alcoholism and other addictive behaviours, and says that it can be overcome using similar methods to addiction therapies. You don t need to be a rocket scientist Investing is not a game where the guy with the 160 IQ beats the guy with 130 IQ Warren Buffet. Warren Buffett, Wikimedia. Forbes ranks Buffett as the thirteenth most powerful person in the world, and estimates his net worth at 58 5 billion His interest in the financial markets was evident from a young age when, aged just ten, he insisted on a visit to the New York Stock Exchange during a family trip. Buffett is well known as a practising value investor investing in stock based on solid analysis of the company itself, often holding positions for years, even decades His back-to-basics approach is validate d by Buffett s status as the most successful investor of the 20th Century. Buffett is a living reminder that technical indicators don t tell the whole story, and clever tricks with graphs and formulae are no guarantee of success. Taken together, these quotes - and their sources - teach us that learning to trade successfully takes time, dedication and a thick skin The road to success is paved with failure.
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