スペシャリストになる覚悟

by Yosuke Furukawa

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εϖγϟϦετʹͳΔ ֮ޛ 2021/01/16 @ Engineer Career Study #1

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Twitter: @yosuke_furukawa Github: yosuke-furukawa ࠷ۙͷ׆ಈ $ISPNF"EWJTPSZ#PBSE +4$POG+1PSHBOJ[FSFUD

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ϚωʔδϟʔͱεϖγϟϦετ

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ITΤϯδχΞͷΩϟϦΞͱͯ͠ޠ ΒΕΔʮεϖγϟϦετʯͱ͸ͳ Μͳͷ͔ɻ ҰൠతͳΩϟϦΞͱͯ͠ޠΒΕͯ ͍Δ΋ͷͷɺҰͭͷઐ໳ੑͷΈͰ څྉΛ͍͋͛ͯ͘͜ͱͷ೉͠͞Λ ײ͡ΔΤϯδχΞ΍ɺࣗ਎ͷߟ͑ ͱ͸ཪෲʹϚωʔδϟʔͷಓΛٻ ΊΒΕΔํ΋͍·͢ɻ https://forkwell.connpass.com/event/200159/

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Զ͡ΌΜ... (γχΞιϑτ΢ΣΞΤϯδχΞ݉ άϧʔϓϚωʔδϟ)

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ͦ΋ͦ΋εϖγϟϦετͱϚ ωʔδϟʔ͸ͳͥରཱ͢Δ֓ ೦͔ͷΑ͏ʹѻΘΕͯΔͷ͔

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ݹయ ୈޒষʮϚωʔδϟʔͱ͸Կ͔ʯ ϚωʔδϟʔͰ͋Εɺઐ໳ՈͰ͋ ΕɺϚωδϝϯτͷҰһͰ͋Δ͜ͱ ʹ͸มΘΓ͕ͳ͍ɻ Ϛωʔδϟʔͱઐ໳Ոͷҧ͍͸Ϛ ωʔδϟʔͷ΄͏͕Ұ͚ͭͩ༨෼ͳ ଆ໘Λ͍࣋ͬͯΔͱ͍͏ࣄ͚ͩͩɻ ɹɹɹɹɹʹʹதུʹʹ ҧ͍͸ɺػೳͰ΋ߩݙͰ΋ͳ͘खஈ ʹ͋Δɻ྆ऀʹཁٻ͞ΕΔ΋ͷ͸ಉ ͡Ͱ͋Δɻ https://www.diamond.co.jp/book/9784478410233.html

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εϖγϟϦετ ݸਓͰ੒ՌΛग़͢ਓ

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Ϛωʔδϟʔ ૊৫ΛӡӦ͠੒Ռʹ੹೚Λ࣋ͭਓ

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εϖγϟϦετ ݸਓͰ੒ՌΛग़ ͢ਓ Ϛωʔδϟʔ ૊৫ΛӡӦ͠੒Ռ ʹ੹೚Λ࣋ͭਓ ͦ΋ͦ΋ڥքઢ͕ͦ͜·Ͱ͸͖ͬΓ͍ͯ͠ͳ͍ɻ ιϑτ΢ΣΞ։ൃʹ͓͍ͯ͸ಛʹɻ

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εϖγϟϦετ ιϑτ΢ΣΞ։ൃʹ͓͍ͯ͸ݸਓ୯ ମͰ੒ՌΛग़͢͜ͱ͕গͳ͍ɻ νʔϜ։ൃͱͯ͠νʔϜશମͰ੒Ռ Λग़͢ඞཁ͕͋Δɻ

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Ϛωʔδϟʔ ιϑτ΢ΣΞ։ൃʹ͓͍ͯ͸Ϛωʔ δϟʔ΋ઐ໳తͳ஌ࣝ͸ඞཁɻ ਐԽͷ଎͍ۀքͰ͸खΛಈ͔ͯ͠Π ϯϓοτ͢Δඞཁ΋͋Δɻ

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εϖγϟϦετͱϚωʔδϟʔ͸ରཱ͢Δ ֓೦͡Όͳ͍ͱ͍͏ࣄΛೝࣝͯ͠΄͍͠ɻ εϖγϟϦετͰ͋ͬͯ΋ਓΛϦʔσΟϯ άͨ͠Γɺҭ੒͢Δඞཁ͸͋Δ͠ɺϚωʔ δϟʔͰ͋ͬͯ΋ίʔυ͸ॻ͘ɻ

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ʮϚωʔδϟʔʹͳͬͯ΄͍͠ʯͱ ݴΘΕͨ࣌ʹΫϥγοΫͳఆٛͷϚ ωʔδϟʔͷҹ৅͔ΒωΨςΟϒʹ ߟ͑Δͷ͸΋͍ͬͨͳ͍ɻ

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ݹ઒͸Ϛωʔδϟʔʹͳͬͯ ΄͍͠ͱݴΘΕͨ࣌ʹ ʮ΍ͬͨ͜ͱͳ͍͔Β΍ͬͯ Έ͍ͨʯͱࢥͬͨɻ

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εϖγϟϦετ΋ಉ༷ɺࣗ෼ ͷ΍Γ͍ͨ։ൃΛଓ͚ΔͳΒ νʔϜશମʹߟ͑ํΛ޿͛Δ ඞཁ͕͋Δ͠ɺͦͷͨΊʹ͸ Ϛωʔδϟʔ͕΍ΔΑ͏ͳ࢓ ࣄ΋΍Δඞཁ͕͋Δɻ

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ͱ͸͍͑ɺେมͦ͏...

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๻ͷ৔߹

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γχΞΤϯδχΞ • ΞϓϦέʔγϣϯ։ൃͦͷ΋ͷʹؔΘΔ͜ͱ͸গ ͳ͍ʢͨ·ʹͦΕ΋΍Δ͚Ͳ΍Δͱ͖͸஍ࠈʣ • ͦ΋ͦ΋ͷઃܭ΍ϓϩτλΠϓ։ൃ͕ϝΠϯ • ։ൃͷखॿ͚ʹͳΔΑ͏ͳϥΠϒϥϦͷ։ൃ΍ OSSͷதʹ౿ΈࠐΜͩௐࠪ΍৔߹ʹΑͬͯ͸PRΛ ग़͢ɺ·ͱ·ͬͨΒϒϩάͰ஌ࣝΛڞ༗͢ΔͳͲ

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ҰํͰϚωʔδϟʔͱͯ͠΍ͬͯ Δ͜ͱ • ϝϯόʔͷλεΫΞαΠϯʢ΍Γ͍ͨ͜ͱͱ΍Βͳ ͖Ό͍͚ͳ͍͜ͱΛ߹ΘͤΔʣ • ࠾༻ɺҭ੒ʢ໘઀΍༏लͳީิऀ΁ͷ੠͔͚ɺ৽ਓݚ मͷߨࢣʣ • ษڧձ΍ϋοΧιϯͳͲɺࣾ಺ͰΤϯδχΞίϛϡχ ςΟ࡞Γ • ࠾༻ ϝϯόʔ͕༏लͰ͋ΔͱɺͲΕ΋ͦΜͳʹ೉͘͠ͳ͍ɻ ίϛϡχςΟ࡞Γ͸ࣗ෼ͷϥΠϑϫʔΫʹ͍ۙͷͰͦ͜·Ͱ೉͘͠ͳ͍ɻ

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ϚωδϝϯτͱεϖγϟϦετͷཱ͕྆େ ม͔Ͳ͏͔͸ϝϯόʔʹڧ͘ґଘ͢Δɻ पғͷϝϯόʔ͕༏लͳΒϚωδϝϯτΛ ߦ͍ͳ͕ΒίʔυΛॻ͘͜ͱ΋Մೳ ܲͱཛͷΑ͏ͳؔ܎ʹͳ͍ͬͯΔɺͳͷͰେมɻ ࠾༻΍ҭ੒΋ҰேҰ༦Ͱ͸Ͱ͖ͳ͍ɻ͜͜·ͰདྷΔͷʹ೥͔͔ͬͨɻ

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εϖγϟϦετ ൃද 044 ϥΠϒϥϦ αʔϏε Output φϨοδ Ϛωʔδϟʔ Team Assign Share Engineer Community Recruitment

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εϖγϟϦετ ൃද 044 ϥΠϒϥϦ αʔϏε Output φϨοδ Ϛωʔδϟʔ Team Assign Share Engineer Community Recruitment εϖγϟϦετνʔϜ͕Ξ΢τϓοτͨ͠΋ͷΛڞ༗͠ɺίϛϡχςΟʹؐݩ Ϛωʔδϟʔ͔ͦ͜ΒڵຯΛ࣋ͬͯ͘ΕͨਓΛ࠾༻͠ɺҭ੒ͯ͠νʔϜʹؐݩ

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Q.εϖγϟϦετͱϚωʔ δϟʔΛ྆ํ΍Δͷ͸େมʁ A. ΋ͪΖΜେม ͚ͩͲ྆ํ΍ΕΔ͜ͱ͕ཧ૝ େม͞Λ৐Γӽ͑Ε͹΍Γ͍ͨ ͜ͱ͕޿͕͍ͬͯ͘ɻ

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ͦ΋ͦ΋εϖγϟϦετʹͳΔͬ ͯͲ͏΍ͬͨΒ੒ΕΔͷ͔...?

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๻ͷ৔߹

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ϦΫϧʔτʹ͓͚ΔγχΞͷཁ݅ • ࣾ಺֎ͰΤΩεύʔτͱͯ͠ೝ஌͞Ε͍ͯΔ͜ͱ ʢNode.js ͷୈҰਓऀͱͯ͠ೝࣝ͞Ε͍ͯΔʣ • ͦͷਓ͕Ұਓ͍Δ͚ͩͰɺϓϩμΫτઓུ͕มΘΔɻ ࠓ෩ʹݴ͏ͱɺʮபʯ ʢ௨ৗͰ͸࡞Εͳ͍Α͏ͳ΋ͷ΋࡞ΕΔɺϋΠύϑΥʔ ϚϯεͳΞϓϦέʔγϣϯ౳ʣ • γχΞʹͳΔͱɺϝϯόʔ͔ΒϩʔϧϞσϧͱͯ͠ೝࣝ͞ΕΔ

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ΤϯδχΞʹͳΔ֮ޛ • 3೥΄Ͳલʹൃදͨ͠࿩ • ΞϓϦέʔγϣϯΛ࡞Ζ͏ • ඇػೳཁ݅ʹͩ͜ΘΖ͏ • ஌ࣝʹ֞ࠜ͸࡞Βͳ͍

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εϖγϟϦετʹͳΔͨΊʹ৺ ͕͚Δ͜ͱ • ࣗ෼ͷ੹೚ʹ͢Δ • ଉΛు͖ଓ͚Δ • Կ͔͠ΒͷνϟϨϯδΛଓ͚Δ

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ࣗ෼ͷ੹೚ʹ͢Δ

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Node.js ೔ຊϢʔβʔάϧʔϓ୅ දʹͳͬͨ࣌ͷࠒ (2014೥)

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Node.js ͸ࠞཚظͰͨ͠ɻ

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ࢭ·Γଓ͚ΔϦϦʔε Revert͞Εଓ͚Δίϛοτ Ұͭ΋ୡ੒͠ͳ͍ϚΠϧετʔϯ

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io.js ͱ Node.js ͱ͍͏෼அ

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͜ͷ࣌ʹࢥ͍ͬͯͨͷ͸ɺ ʮNode.jsͱio.jsͷࠞཚΛࢭΊͳͯ͘͸ʯ

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Node.js ͸ fork ͞Εͯ io.js ʹϝ Πϯίϛολ͕ྲྀΕɺ Node.js ͸ Node.js ͰϨΨγʔ։ൃͱ͠ ͯෆ۩߹मਖ਼͕ਐΉ సػ

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ࠓ·Ͱ͸άϩʔόϧʹى͖͍ͯΔมߋΛϩʔΧϧ ʢ೔ຊʣʹ఻͑Δ͜ͱ͔ͯ͠͠ͳ͔ͬͨɻ ݴΘ͹ɺ֎Ͱى͖͍ͯΔ͜ͱΛ఻͑Δ͚ͩͩͬͨɻ

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Node.js಺Ͱى͖ͯΔ͜ͱΛ io.js ʹల։ ͠ɺ io.js ಺Ͱى͖ͯΔ͜ͱΛ Node.js ʹ ΋ϑΟʔυόοΫ͢ΔࣄͰɺมߋͷࠩ෼Λ খ͘͢͞Δ͜ͱʹ຿Ίͨɻ

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ͦ͏͢Ε͹ɺҠߦ΋ͦ͜·Ͱ೉͘͠ͳ͍ɻ ͲͬͪΛબͿ͔͸Ϣʔβʔ͕બ୒͢Ε͹ ྑ͍ɻ

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ٕज़తʹى͖͍ͯΔมԽΛ୭͔͕΍ͬͯ͘ ΕΔͱࢥͬͯ೚ͤΔͷͰ͸ͳ͘ɺࣗ෼ͷ͜ ͱͱͯ͠੹೚Λ௥͏ɻ

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݁Ռ: 2015೥ʹ Node.js ͱ io.js ͸౷߹ ͦͷ࣌ͷ׆ಈ͕͖͔͚ͬͰ ίΞίϯτϦϏϡʔλʔ݉ΤϰΝϯδΣϦετʹɻ

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ଉΛు͖ଓ͚Δ

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ଉΛు͖ଓ͚Δ = Ξ΢τϓοτΛ͠ଓ͚Δ

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ଉΛు͖ଓ͚ΔͱٵΘͳ͍ͱ ͍͚ͳ͘ͳΔɺΠϯϓοτ΋ ܧଓతʹͰ͖ΔΑ͏ʹͳΔ

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Node.js / io.js ૽ಈ͕͋ͬͨ࣌ ͔Βಛʹߟ͑ํ͸ ʮάϩʔόϧΛҙࣝͯ͠΍Δʯ

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άϩʔόϧͰ΍ͬͯΔ͜ͱΛ೔ ຊʹೖΕΔΑΓ΋೔ຊͰى͖ͯ Δ͜ͱΛάϩʔόϧʹల։͢Δ

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ͳͷͰΞ΢τϓοτ΋ άϩʔόϧΛҙ͍ࣝͯͨ͠ɻ jsconf.asia 2016 Node interactive 2017 AMP Fest 2020

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೔ຊͩͱੈքͷϩʔΧϥΠζͰ΋ൃ දʹͳΔ͚Ͳੈքͩͱͦͷ্Λ௒͑ ͍ͯ͘ඞཁ͕͋Δɻ ͳͷͰΞ΢τϓοτ΋࣭͕มΘΔɻ

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Կ͔͠ΒͷνϟϨϯδΛଓ͚Δ

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1೥ؒͱ͍͏εύϯΛઃ͚ͯ ԿΒ͔ͷνϟϨϯδΛଓ͚͖ͯͨɻ Japan Node.js Association ๏ਓԽ ೦ئͷ JSConf.JP ։࠵

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͜͜࠷ۙ͸Ϛωʔδϟʔ͚ͩͲຖ೔ ίʔυॻ͘ͷΛ΍ΔͷΛνϟϨϯδ ʹ͍ͯ͠·͢ɻ Leetcode Λຖ೔ղ͍ͯΔʢ࠷ۙ͸RustͰ) Write Code Everyday Ͱ1೥൒ܧଓ

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ৗʹͳʹ͔΍Δɻ खΛಈ͔͢͜ͱ͸΍Ίͳ͍ɻ

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ίϯϑΥʔτκʔϯʹཹ·Β ͳ͍Α͏ʹͯ͠Δʢͭ΋Γʣ

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·ͱΊ

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·ͱΊ • ϚωʔδϟʔͱεϖγϟϦετ • ϚωʔδϟʔͱεϖγϟϦετ͸ରཱ֓೦͡Όͳ͍ • ιϑτ΢ΣΞ։ൃʹ͓͍ͯ͸Ή͠Ζڞ௨߲͕ଟ͍ • ཱ྆͢Δͷ͸΋ͪΖΜେม͚ͩͲɺ৐Γӽ͑Ε͹΍Γ͍ͨ͜ͱ͕Ͱ͖Δ • εϖγϟϦετʹͳΔʹ͸ • ࣗ෼ͷ੹೚ʹ͢Δ • ଉΛు͖ଓ͚Δ • ৗʹԿ͔͠ΒνϟϨϯδ͢Δ

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ͦͯ͠ࠓ౓͸܅͕ͨͪ ޙഐΛकΔபͱͳΔͷͩɻ (َ໓ͷਕ 8ר: Ẃࠈҍण࿠) ஶ: ޗಕݺੈ੖ ग़൛ࣾ: ूӳࣾ ग़൛೥: 2017

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͋Γ͕ͱ͏͍͟͝·ͨ͠