GitHub Copilot を使って自作ライブラリを作ってみよう/ Let's create your own library using GitHub Copilot!

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גࣜձࣾλΠϛʔɹShintani Teppei GitHub Copilot Λ࢖ͬͯ ࣗ࡞ϥΠϒϥϦΛ࡞ͬͯΈΑ͏ @euglena1215 ʲϋΠϒϦου։࠵ʳGitHub CopilotͰ୓͘։ൃੜ࢈ੑ

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ࣗݾ঺հ ৽୩ ఩ฏʢ@euglena1215ʣ ● גࣜձࣾλΠϛʔ ● όοΫΤϯυΤϯδχΞ ● ޷͖ͳΧϨʔϧʔ͸δϟϫΧϨʔதਏ Έͳ͞Μͷ͓͢͢ΊΧϨʔϧʔΛʮ#CopilotͰ୓͘։ൃੜ ࢈ੑʯͰπΠʔτϙετͯ͠ڭ͍͑ͯͩ͘͞

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ืूਓ਺ͷਪҠ 4 ※1ɿ2022೥4Qͱ2021೥4Qͷൺֱ ίϩφՒʹ͓͍ͯ΋ɺ աڈʹྫΛݟͳ͍ఔͷ Ճ଎తߴ੒௕Λ࣮ݱɻ

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એ఻ λΠϛʔɺ ·ͩ GitHub Copilot for Business ༨ͬͯ·͢ɻ

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એ఻ ۀ຿Ͱ GitHub Copilot Λ࢖͍͍ͨํ͸  λΠϛʔ΁ʂ ·ͣ͸ΧδϡΞϧ໘ஊ͔Βʂ ʮλΠϛʔ ΧδϡΞϧ໘ஊʯͰݕࡧ🔍

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גࣜձࣾλΠϛʔɹShintani Teppei GitHub Copilot Λ࢖ͬͯ ࣗ࡞ϥΠϒϥϦΛ࡞ͬͯΈΑ͏ @euglena1215 ʲϋΠϒϦου։࠵ʳGitHub CopilotͰ୓͘։ൃੜ࢈ੑ

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͜Μͳํ޲͚ͷൃදͰ͢ ● GitHub Copilot ࠷ۙΑ͘ฉ͚͘Ͳ݁ہ·ͩ࢖ͬͨ͜ͱ͕ͳ͍... ○ → GitHub Copilot ศར͡ΌΜɻͪΐͬͱ৮ͬͯΈΑ͏͔ͳ ● GitHub Copilot Λ࢖͍͜ͳ͍ͯ͠Δํ͸ʮ෼͔ΔʙʯͱπΠʔτ ͠ͳ͕ΒσϞͷԠԉΛ͓ئ͍͠·͢ʂ

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໨࣍ 1. ͳͥࣗ࡞ϥΠϒϥϦͳͷ͔ 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔ 3. ΍ͬͯΈͯͲ͏ײ͔ͨ͡

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໨࣍ 1. ͳͥࣗ࡞ϥΠϒϥϦͳͷ͔ 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔ 3. ΍ͬͯΈͯͲ͏ײ͔ͨ͡

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1. ͳͥࣗ࡞ϥΠϒϥϦͳͷ͔ ۀ຿ΞϓϦέʔγϣϯ ● ݻ༗ͷυϝΠϯϩδοΫΛ࣋ͭ ● ۀ຿ΞϓϦέʔγϣϯͷίʔυؙ͕ʑެ։͞Ε͍ͯΔ͜ͱ͸গͳ͍  ʢ㲈 σʔληοτ͕গͳ͍ʣ ● ݻ༗ͷυϝΠϯϩδοΫ͕গͳ͍ ● ༏लͳϥΠϒϥϦ͕Φʔϓϯιʔεͱͯͨ͘͠͞Μެ։͞Ε͍ͯΔ  ʢ㲈 σʔληοτ͕ଟ͍ʣ ࣗ࡞ϥΠϒϥϦ

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1. ͳͥࣗ࡞ϥΠϒϥϦͳͷ͔ ۀ຿ΞϓϦέʔγϣϯ ● ݻ༗ͷυϝΠϯϩδοΫΛ࣋ͭ ● ۀ຿ΞϓϦέʔγϣϯͷίʔυؙ͕ʑެ։͞Ε͍ͯΔ͜ͱ͸গͳ͍  ʢ㲈 σʔληοτ͕গͳ͍ʣ ● ݻ༗ͷυϝΠϯϩδοΫ͕গͳ͍ ● ༏लͳϥΠϒϥϦ͕Φʔϓϯιʔεͱͯͨ͘͠͞Μެ։͞Ε͍ͯΔ  ʢ㲈 σʔληοτ͕ଟ͍ʣ ࣗ࡞ϥΠϒϥϦ ิ଍ɿ ● ͋͘·Ͱ૬ରతͳ࿩ ● ࣗ෼΋ۀ຿ΞϓϦέʔγϣϯΛ։ൃ͢Δࡍʹ  GitHub Copilot Λ࢖͍ͬͯͯɺੜ࢈ੑͷ޲্Λײ͍ͯ͡·͢ɻ ● ۀ຿ΞϓϦέʔγϣϯͷ։ൃʹ͓͍ͯ GitHub Copilot ͕  ༗༻Ͱ͸ͳ͍ͱ͍͏࿩Ͱ͸ͳ͍͜ͱΛ͝ೝ͍ࣝͩ͘͞ɻ

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໨࣍ 1. ͳͥࣗ࡞ϥΠϒϥϦͳͷ͔ 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔ 3. ΍ͬͯΈͯͲ͏ײ͔ͨ͡

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2. ࣮ࡍʹ࣮૷ͯ͠ΈΔ σϞΛ౿·͑ͳ͕Β঺հ͍͖ͯ͠·͢ɻ σϞͰར༻ͨ͠ιʔείʔυɿ  https://github.com/euglena1215/20230830_github_copilot_demo

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my_active_model gem Λ࡞੒தɻࠓ࣮૷Ͱ͖͍ͯΔͷ͸͜͜·Ͱɻ 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔ - લఏ attribute :foo ͱॻ͘ͱ   ରԠͨ͠ίϯετϥΫλɺ getterɺsetter ͕ఆٛ͞ΕΔɻ

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attribute ʹҾ਺Λ௥Ճͯ͠ɺvalid? ͰܕͷݕূΛߦ͍͍ͨɻ 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔᶃ - valid? ͷ࣮૷ ΫϥεͰࢦఆͨ͠ܕͱ஋͕Ұ க͍ͯ͠Ε͹ true Λฦ͢ɻ

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DEMO 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔᶃ - valid? ͷ࣮૷

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ઃఆ͞Ε͍ͯΔશ attribute ʹରͯ͠ܕΛݕূͯ͠ ΄͍͠ͷͰఆٛ͞Εͨશ attribute ৘ใΛฦ͢ϝ ιουΛ࢖ͬͯϧʔϓΛճͦ͏ͱ͢Δͱ...

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type ʹ :integer, :string ͳͲͷγϯϘϧͰ ͸ͳ͘ɺ Integer, String ͳͲͷΫϥε͕౉ ͞ΕΔ͜ͱΛ૝ఆ࣮ͨ͠૷͕ఏҊ͞Ε ͨɻʢ੯͍͠ʂʣ

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ඞਢ߲໨ΛࢦఆͰ͖Δ required Φϓγϣϯ΋Ұ ॹʹఏҊ͞Εͨɻ͋ͬͯ΋Αͦ͞͏ɻ

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ࠓճ͸ఏҊΛར༻ͤͣɺܕͷݕূͷ෦ ෼Λ੾Γग़ͨ͠ valid_type? ϝιου Λ࣮૷͢Δ͜ͱʹɻ

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private ϝιουͱͯ͠ఆٛ͠Α͏ͱ “private” · Ͱೖྗ͢Δͱ valid_type? ϝιουͷఆ͕ٛఏҊ ͞Εͯ...

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type Ҿ਺ʹ߹ΘͤͯܕͷݕূΛߦ͏࣮ ૷͕ఏҊ͞Εͨ 🎉

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boolean ͷݕূ͸૝ఆ͍ͯ͠ͳ͔ͬͨ ΋ͷͷɺ͋ͬͨํ͕Αͦ͞͏ͳͷͰऔ ΓࠐΉ͜ͱʹɻ

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boolean ͷݕূ͸૝ఆ͍ͯ͠ͳ͔ͬͨ ΋ͷͷɺ͋ͬͨํ͕ྑͦ͞͏ͩͱߟ͑ औΓࠐΉ͜ͱʹɻ ͜ΕͰ valid? ϝιουʹΑΔ ܕͷݕূ͸࣮૷׬ྃ 🎉🎉🎉

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to_h Λ௥Ճͯ͠࿈૝഑ྻʢHashʣͱͯ͠ฦ͍ͨ͠ɻ 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔᶄ - to_h ͷ࣮૷

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DEMO 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔᶄ - to_h ͷ࣮૷

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ϝιου໊Λೖྗ͚ͨͩ͠ͰҰൃͰద ੾ͳ࣮૷͕ఏҊ͞Εͨ 🎉

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Enumerable#each_with_object ͸ීஈ ͋·Γ࢖͏͜ͱ͕ͳ͔ͬͨͷͰษڧʹ ͳͬͨɻ

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Enumerable#each_with_object ͸ීஈ ͋·Γ࢖͏͜ͱ͕ͳ͔ͬͨͷͰษڧʹ ͳͬͨɻ ͜ΕͰ to_h ϝιουͷ࣮૷΋׬ྃ🎉🎉🎉

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to_json Λ௥Ճͯ͠JSONͱͯ͠ฦ͍ͨ͠ɻ 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔᶅ - to_json ͷ࣮૷

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DEMO 2. ࣮ࡍʹ࣮૷ͯ͠ΈΔᶅ - to_json ͷ࣮૷

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ͪ͜Β΋ϝιου໊Λೖྗ͢Δ͚ͩͰ ҰൃͰద੾ͳ࣮૷͕ఏҊ͞Εͨ 🎉

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͖ͬ͞ఆٛͨ͠ to_h ϝιου͕  ࢖ΘΕͯΔʂ

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͖ͬ͞ఆٛͨ͠ to_h ϝιου͕  ࢖ΘΕͯΔʂ ͜ΕͰ to_json ϝιου΋ ࣮૷׬ྃ🎉🎉🎉

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໨࣍ 1. ͳͥࣗ࡞ϥΠϒϥϦͳͷ͔ 2. ࣮ࡍͲΜͳײ͡ͳͷ͔ 3. ΍ͬͯΈͯͲ͏ײ͔ͨ͡

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3. ΍ͬͯΈͯͲ͏ײ͔ͨ͡ GitHub Copilot Λ࢖͏͜ͱͰࣗ࡞ϥΠϒϥϦ࡞੒ͷϋʔυϧ͕άοͱԼ͕ͬͨʂ - ๞͖Δલʹ࠷௿ݶ࢓্͛ΒΕΔ - ࣗ࡞ϥΠϒϥϦ͸׬੒͢Δલʹ๞͖ͯ͠·͍͕ͪ... - GitHub Copilot Λ࢖͑͹ߴ଎ʹ։ൃͰ͖ΔͷͰɺ๞͖Δલʹ࠷௿ݶͷ࣮૷Λ࢓্͛ΒΕΔʂ - ֶशڭࡐͱͯ͠΋⭕ - ීஈ࢖Θͳ͍ϝιουͷ࢖͍Ͳ͜ΖΛ஌ΕΔ - ϥΠϒϥϦಛ༗ͷந৅తͳίʔυ΋ఏҊͯ͘͠ΕΔ

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