20歳の僕が経験した Perlエンジニアへの道

by Hagihara Ryosuke

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20ࡀͷ๻͕ܦݧͨ͠ PerlΤϯδχΞ΁ͷಓ גࣜձࣾϛΫγΟ ഡݪ ྋհ @raryosu :"1$5PLZPϥϯνηογϣϯ

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͜ͷϓϨθϯʹ͍ͭͯ 1FSMΛॻ͍ͨ͜ͱ͕ͳ͍৽ଔΤϯδχΞ ͕ 1FSMΛॻ͘8FCΤϯδχΞͱͯ͠ಇ͍ͯ ԿΛײͨ͡ͷ͔ΛޠΔ

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ࣗݾ঺հ ͸͗͸Β Γΐ͏͚͢ ഡݪ ྋհ ‣ ΒΓΐ͢!SBSZPTV ‣ ೥ੜ·Εࡀ ‣ ೥݄৽ଔೖࣾʢߴઐଔʣ ‣ NJOJNPࣄۀ෦ΤϯδχΞʢ։ൃάϧʔϓ༡ܸνʔϜʣ ‣ αʔόαΠυ։ൃɾ$9ϏδωεαΠυ౳ͷαϙʔτ

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NJOJNP αϩϯελοϑ௚઀༧໿αʔϏε ඒ༰ࢣɾωΠϦετFUDʹ௚઀༧໿

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NJOJNP αϩϯελοϑ௚઀༧໿αʔϏε ඒ༰ࢣɾωΠϦετFUDʹ௚઀༧໿ ສμ΢ϯϩʔυ ͋Γ͕ͱ͏ʂʂʂʂʂ

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NJOJNP ୅ʙ୅ͷए͍ঁੑʹ େਓؾͷαʔϏε

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୅ʙ୅ͷए͍ঁੑʹ େਓؾͷαʔϏε NJOJNP

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͜ͷϓϨθϯʹ͍ͭͯ 1FSMΛॻ͍ͨ͜ͱ͕ͳ͍৽ଔΤϯδχΞ ͕ 1FSMΛॻ͘8FCΤϯδχΞͱͯ͠ಇ͍ͯ ԿΛײͨ͡ͷ͔ΛޠΔ

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഑ଐ

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഑ଐͷํ๏ ৽ଔ഑ଐͷΩʔϫʔυ ଟ֯తͳࢹ఺͔Β੒௕Ͱ͖Δ؀ڥ΁ΞαΠϯ

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഑ଐͷํ๏ ‣ ٕज़ྖҬࣥߦ໾һ ҎԼ$50 ɾਓࣄͱͷPO ‣ ֤෦ॺͱ໘ஊ ‣ $50ʹΑΔਪન෦ॺ ‣ ຊਓر๬෦ॺ ‣ ෦ॺ͔Βͷࢦ໊ ‣ ֤໘ஊʹ͍ͭͯ໘ஊઌͱຊਓ͔ΒϑΟʔυόοΫ ‣ $50ͱਓࣄʹΑͬͯ഑ଐΛܾఆ

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NJOJNPͷ഑ଐ໘ஊ Ͳ͏͍͏෼໺ʹڵຯ͋Δʁ Ϛωʔδϟ

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NJOJNPͷ഑ଐ໘ஊ Ͳ͏͍͏෼໺ʹڵຯ͋Δʁ ΢ΣϒϑϩϯτͰ͢ʂ Ͱ΋ɼ෯޿͘΍Γ͍ͨͰ͢ɽ ΤϯδχΞϦϯά΋ͦΕҎ֎΋ʂ Ϛωʔδϟ

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NJOJNPͷ഑ଐ໘ஊ Ͳ͏͍͏෼໺ʹڵຯ͋Δʁ ΢ΣϒϑϩϯτͰ͢ʂ Ͱ΋ɼ෯޿͘΍Γ͍ͨͰ͢ɽ ΤϯδχΞϦϯά΋ͦΕҎ֎΋ʂ ͏ͪͰ͸গ͠1FSM΋ॻ͚͘Ͳ େৎ෉ʁ Ϛωʔδϟ Ϛωʔδϟ

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NJOJNPͷ഑ଐ໘ஊ Ͳ͏͍͏෼໺ʹڵຯ͋Δʁ ΢ΣϒϑϩϯτͰ͢ʂ Ͱ΋ɼ෯޿͘΍Γ͍ͨͰ͢ɽ ΤϯδχΞϦϯά΋ͦΕҎ֎΋ʂ ͏ͪͰ͸গ͠1FSM΋ॻ͚͘Ͳ େৎ෉ʁ 1FSMॻ͍ͨ͜ͱͳ͍͠Α͘஌ΒΜ͚Ͳ ͕Μ͹Γ·͢ʂ΋ʔ·Μ͍ͨͰ͢ʂ Ϛωʔδϟ Ϛωʔδϟ

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NJOJNPͷ഑ଐ໘ஊ 1FSMॻ͍ͨ͜ͱͳ͍͠Α͘஌ΒΜ͚Ͳ ͕Μ͹Γ·͢ʂ΋ʔ·Μ͍ͨͰ͢ʂ

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NJOJNPͷ഑ଐ໘ஊ ‣ 1FSMͩΖ͏ͱͳΜͩΖ͏ͱษڧʹͳΓͦ͏ʜ ‣ αʔϏε΋෦ॺ΋ྑͦ͞͏ ‣ ΍Γ͍ͨ͜ͱΛߟ͑Δͱ࠷΋Ϛον͢Δ ‣ 1FSMΛʮݏʯͬͯݴ͑Δཧ༝΋ͳ͍ͳʜ 1FSMॻ͍ͨ͜ͱͳ͍͠Α͘஌ΒΜ͚Ͳ ͕Μ͹Γ·͢ʂ΋ʔ·Μ͍ͨͰ͢ʂ

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ແࣄʹʜ NJOJNP΁ͷ഑ଐ͕ܾఆ

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̼JOJNPͷϓϩμΫτ Application Server Mojolicious εϚϗΞϓϦ αϩϯ޲͚༧໿؅ཧγεςϜ Web൛αʔϏε API (JSON RPC)

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NJOJNPͷϓϩμΫτ αϩϯ޲͚༧໿؅ཧγεςϜ εϚϗΞϓϦ iOS: Swift, Obj-C Android: Kotlin, Java API, WebΞϓϦέʔγϣϯ Perl (Mojolicious) Perl (Mojolicious), React ܝࡌऀ޲͚Φ΢ϯυϝσΟΞ WordPress

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ΒΓΐ͢ͷकඋൣғʙϓϩμΫτʙ αϩϯ޲͚༧໿؅ཧγεςϜ εϚϗΞϓϦ iOS: Swift, Obj-C Android: Kotlin, Java API, WebΞϓϦέʔγϣϯ Perl (Mojolicious) Perl (Mojolicious), React ܝࡌऀ޲͚Φ΢ϯυϝσΟΞ WordPress

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ΒΓΐ͢ͷकඋൣғʙϓϩμΫτʙ αϩϯ޲͚༧໿؅ཧγεςϜ εϚϗΞϓϦ iOS: Swift, Obj-C Android: Kotlin, Java API, WebΞϓϦέʔγϣϯ Perl (Mojolicious) Perl (Mojolicious), React ܝࡌऀ޲͚Φ΢ϯυϝσΟΞ WordPress Web൛αʔϏεΛ୲౰͢Δ ϝΠϯΤϯδχΞͱͯ͠഑ଐ

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ΒΓΐ͢ͷकඋൣғʙͦͷଞʙ ΧελϚʔαϙʔτ $4 ༻؅ཧπʔϧ $4޲͚ΤϯδχΞϦϯάࢧԉʢՄࢹԽ౳ʣ #4޲͚ΤϯδχΞϦϯάࢧԉʢՄࢹԽ౳ʣ ʜFUD

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࢖͏πʔϧɾݴޠͳͲ ‣ 1FSM .PKPMJDJPVT ‣ )5.-$44 4$44 ‣ .Z42- ‣ 3FEBTIʢσʔλՄࢹԽʣ ‣ "84 &$ 4 3PVUF 3%4 4&4FUD FUD

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഑ଐ࣌఺ͰͷΒΓΐ͢ͷΤϯδχΞϦϯάͷϨϕϧ ‣ 1FSM͸ॻ͍ͨ͜ͱͳ͍ ‣ 1FSMΛॻ͖ͨ͘ͳ͍ͱ͍͏ؾ࣋ͪ͸ͳ͍ ‣ ߴઐଔ ‣ όΠτͰ3BJMTͰ࡞ΒΕͨγεςϜͷอकΛͯͨ͠ ‣ .7$͸஌ͬͯΔɽΞʔΩςΫνϟʹ͍ͭͯ͸ޠΕͳ͍

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1FSMͷڭҭͱۀ຿

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ຖேઌഐʹ4MBDLͰ

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ڭ͑ͯ΋Βͬͨ͜ͱͷҰ෦ ‣ 1FSMʹ͍ͭͯ ‣ ίϯςΩετ ‣ جຊతͳจ๏ ‣ ଞύοέʔδͷϝιουݺͼग़͠ͷ࢓ํ ‣ ಛघͳߏจʢܕάϩϒͳͲʣ

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ڭ͑ͯ΋Βͬͨ͜ͱͷҰ෦ ‣ .PKPMJDJPVT΍NJOJNPͷίʔυʹ͍ͭͯ ‣ σΟϨΫτϦߏ੒ ‣ %#ͷߏ੒ ‣ NJOJNP΍NJYJͰ࢖͍ͬͯΔศརϞδϡʔϧ ‣ 3PVUJOH΍)FMQFSͷஔ͖৔ͱ͔

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࣮૷Ͱ͍᪴ͨͱ͖ ઌഐͨͪ͸ʮਖ਼ղʯ͸ڭ͑ͯ͘Εͳ͍ ඞཁͱͳΔʮώϯτʯΛ͘ΕΔ

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ͭ·Γʜ ҰਓͰࣗ૸Ͱ͖Δ؀ڥΛ࡞ͬͯ͘Εͨ

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ࡀͰ1FSMΛ͔͍ͯ Ͳ͏ࢥͬͨʁ

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ࡀͰ1FSMΛॻ͍ͯͲ͏ࢥͬͨʁ 1FSMΛॻ͘ͷ͸ָ͍͠ʂ ͦͯ͠ɼֶͼ͕ଟ͍ʂ

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1FSM͸ָ͍͠ 5IFSF`T.PSF5IBO0OF8BZ5P%P*U ॻ͖ํʹਓ͕ؒग़Δ ʮͲ͏ॻ͜͏ʁʯʮͲ͏ॻ͘ͷ͕εϚʔτʁʯΛߟ͑Δ ઌഐͨͪͱʮͲ͏͠Α͏ʯΛٞ࿦͢Δ

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ֶͼ͕ଟ͍ .PKPMJDJPVT͸ൺֱతʮബ͍ʯ8"' ࣗ෼Ͱॻ͘ɾಡΉɾֶͿ͜ͱ͕ଟ͍ʂ ΢ΣϒαʔϏεͷαʔόαΠυΛֶͿͷʹஸ౓͍͍ʁ গͳ͘ͱ΋ࣗ෼͸ʮϥοΩʔʯͩͱࢥ͍ͬͯΔ

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ͱ͸͍͑Α͘Θ͔Βͳ͍͜ͱ΋ଟ͔ͬͨ ‣ σϦϑΝϨϯεΛ๨Εͯਏ͍ ‣ $#array = 20 ‣ ॳݟͩͱΑ͘Θ͔Βͳ͍ ‣ (sort { $a <=> $b } @hoge)[0] ‣ Α͘Θ͔Βͳ͍ ‣ List::Util::reduce{ $a<$b ? $a: $b }@hoge ‣ ্ͷ΍ͭ͸͜ΕͰऔΕΔ͠ແବ͕গͳ͍…

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੒௕

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ײͨ͡੒௕ ‣ ΑΓྑ͍࣮૷ํ๏Λߟ͑ΒΕΔΑ͏ʹͳͬͨ ‣ ಡΈ΍͘͢ҙਤ͕఻ΘΓ΍͍͢ίʔυΛॻ͚ΔΑ͏ʹ ‣ େن໛αʔϏε͕Ͳ͏ಈ͍͍ͯΔ͔ཧղͨ͠ ‣ ΞʔΩςΫνϟ΁ͷڵຯ͕༙͍ͨ ‣ ଞͷݴޠΛֶͿҙཉʹͭͳ͕ͬͨ

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͜Ε͔Β

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࠷ۙ͸(PΛֶΜͰ͍·͢

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8IZ(P ‣ 1FSMͱ͸झ͕ҧָͬͯͦ͠͏͔ͩΒ ‣ ࠷ۙྲྀߦ͍ͬͯΔ͔Β ‣ NJOJNPͷαʔόαΠυΛ(PͰॻ͖௚͍ͯ͠Δ͔Β

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8IZ(P ‣ 1FSMͱ͸झ͕ҧָͬͯͦ͠͏͔ͩΒ ‣ ࠷ۙྲྀߦ͍ͬͯΔ͔Β ‣ NJOJNPͷαʔόαΠυΛ(PͰॻ͖௚͍ͯ͠Δ͔Β

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·ͱΊ

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·ͱΊ ‣ 1FSM͕ʮݏʯͱ͍͏ઌೖ؍͕ͳ͚Ε͹ࡀ΋ॻ͘ ‣ ࣗ૸Ͱ͖Δ؀ڥ͑͋͞Ε͹ֶͿ͜ͱ͕ଟ͍ݴޠ ‣ 8FCαʔϏεͷجૅΛ͔ͬ͠ΓֶͿ͜ͱ͕Ͱ͖͍ͯΔ ‣ 1FSMΛ͔͚ͯϥοΩʔ ‣ ଞͷݴޠΛֶͿҙཉʹ΋ͭͳ͕ͬͨ