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ʮRailsͰ·ͩফ໣͍ͯ͠Δͷʁʯ ─๻Β͕RailsͰઓ͍ଓ͚Δཧ༝─ 2017.12.09 Rails Developers Meetup 2017 Rails Developers Meetup 2017 1

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ࣗݾ঺հ • Toshimaru • Twi,er: toshimaru_e • GitHub: toshimaru • ࢠҭͯฃಆத ! • ࠷ۙخ͔ͬͨ͜͠ͱ: OSSͱͯ͠ެ։͍ͯ͠Δgem͕Bootstrapʹ ࢖ΘΕͨ " Rails Developers Meetup 2017 2

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ʮRails(Ruby) Ͱ·ͩফ໣͍ͯ͠Δͷʁʯ Rails Developers Meetup 2017 3

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ʮRails(Ruby) Ͱ·ͩফ໣͍ͯ͠Δͷʁʯ ͱݴΘΕΔͱ͖ • Twi%erࣾ ͕ Rails Λ΍Ίͯ Scala ʹγϑτͨ͠ͱ͖ • Elixir/Phoenix ͕୆಄͖ͯͨ͠ͱ͖ • GoͷϓϩμΫγϣϯ࣮੷͕૿͑ͨͱ͖ • ISUCONͰRubyνʔϜ͕ෛ͚ͨͱ͖ Rails Developers Meetup 2017 4

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ʮWhy Ruby on Rails?ʯ Rails Developers Meetup 2017 5

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͋ͳͨͳΒͲ͏౴͑·͔͢ʁ Rails Developers Meetup 2017 6

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Why Ruby on Rails? 2ͭͷ໰͍ʹ෼ղ͢Δ͜ͱ͕Ͱ͖Δ 1. Why Ruby? 2. Why Rails? Rails Developers Meetup 2017 7

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Why Ruby? Rails Developers Meetup 2017 8

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φΠεͳRubyίϛϡχςΟ • MINASWAN (Matz is nice so we are nice!) • ϑϨϯυϦʔͰφΠεͳίϛϡχςΟ • ฏ࿨ͳRubyଜ Rails Developers Meetup 2017 9

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Ruby is Made in Japan • RubyͷύύɾMatz • ଟ͘ͷ೔ຊਓͷRuby Comi/ers • ೔ຊޠͰͷ৘ใͷάάΓ΍͢͞ɾ࣭໰ͷ͠΍͢͞ Rails Developers Meetup 2017 10

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Why Ruby? • ڊେͳRubyGemsࢿ࢈ • ॊೈͳݴޠ࢓༷ʢϞϯΩʔύονɾϝλϓϩɾRuby DSLʣ • งғؾͰॻ͍ͯ΋ಈ͘௚ײੑ • ָ͍͠ϓϩάϥϛϯάମݧ: ʮRubyͷݴޠ࢓༷ࡦఆʹ͓͍ͯ࠷ ΋ॏࢹ͍ͯ͠Δͷ͸ετϨεͳ͘ϓϩάϥϛϯάΛָ͠Ή͜ ͱʯby Matz Rails Developers Meetup 2017 11

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Why Rails? Rails Developers Meetup 2017 12

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RailsΛ؏͘2ͭͷ఩ֶ 1. DRY (Don't Repeat Yourself): ಉ͜͡ͱΛ܁Γฦ͞ͳ͍ 2. CoC (Conven9on over Configura9on): ઃఆΑΓن໿ Rails Developers Meetup 2017 13

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ݸਓతʹ͸... CoC >>>>> DRY Rails Developers Meetup 2017 14

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Ruby on Railsͷ఩ֶ 1. DRY • ϓϩάϥϛϯάߦҝʹ͓͍ͯීวతͳߟ͑ํ 2. CoC • Rails͕ఆΊͨRailsಠࣗͷن໿ • ͜ͷن໿ͦ͜RailsͷࠩผԽϙΠϯτͰ͋ΓRails͕༻ҙͨ͠ Railͷຊ࣭ Rails Developers Meetup 2017 15

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Ruby on Railsͷຊ࣭ ηϯεͷྑ͍ن໿ʢ=RailʣʹΑͬͯઃఆ͓ΑͼઃܭͷखؒΛ࠷খ ݶʹͨ͠ͷ͕Ruby on Rails Rails Developers Meetup 2017 16

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Ruby on Railsͷຊ࣭ • CoCʹΑͬͯઃఆʹ·ͭΘΔίʔυΛ·Δͬͱ࡟ݮ • CoCʹΑͬͯઃܭ޻ఔͰੜ͡ΔίϛϡχέʔγϣϯίετΛେ ෯ʹΧοτ • ѹ౗తίʔυྔͷগͳ͞ͱੜ࢈ੑͷߴ͞Λ࣮ݱ Rails Developers Meetup 2017 17

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Ruby on Rails ΁ͷ൷൑ Rails Developers Meetup 2017 18

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ʮʓʓͷํ͕଎͍Αʯ (e.g. Go) Rails Developers Meetup 2017 19

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ͦ͏ͩͶ Rails Developers Meetup 2017 20

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ʮʓʓͷํ͕଎͍Αʯ • ύϑΥʔϚϯεཁ͕݅Ϛετͷέʔεʹ͓͍ͯʢe.g. ޿ࠂ഑৴ αʔόʔʣͦ΋ͦ΋Rubyͱ͍͏ݴޠબ୒͸͢Δ΂͖Ͱͳ͍ • ʮ଎͍ʯͷఆٛΛʮॲཧܥͷ଎͞ʯͱͨ͠ΒRuby͸ෛ͚Δ͕ɺ ʮ։ൃͷ଎͞ʯͱͨ͠৔߹ʹ΋ಉ͜͡ͱ͕ݴ͑ΔͩΖ͏͔ʁ • ΤϯυϢʔβʔʹͱͬͯͷ଎͞ ≠ ॲཧܥͷ଎͞ʢ͔ͷര଎αΠ τdev.to͸Rails੡Ͱ͋Δͱ͍͏ࣄ࣮ʣ Rails Developers Meetup 2017 21

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dev.to͸Rails੡Ͱ͋Δͱ͍͏ࣄ࣮ • αʔϏεಛੑͱཁૉٕज़Λਖ਼͘͠ཧղɾ೺Ѳ্ͨ͠Ͱ࠷దͳ ΞʔΩςΫνϟΛબ୒͢Δ ͜ͱ͕ॏཁ • dev.to ͷ৔߹ • Rails (on Heroku) + CDN (by Fastly) • ੩తίϯςϯπΛ࠷େݶCDNϨΠϠʔͰΩϟογϡ Rails Developers Meetup 2017 22

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ʮRails͕஗͍!ʯͱ͍͏લʹ • ࣗ෼ͷΞϓϦέʔγϣϯઃܭ΍ςʔϒϧઃܭͷࣦഊͷ੹೚Λɺ ݴޠ΍ϑϨʔϜϫʔΫʹԡ͠෇͚ͯ͸͍ͳ͍͔ʁ • ͢Δ΂͖࠷దԽΛ࣮ࢪ͢Δલʹʮ஗͍ʂʯͱ࢐Γࣺͯͯ͸͍ͳ ͍͔ʁ Rails Developers Meetup 2017 23

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ͱ͸͍͑ߴ଎Խͷ౒ྗ͸͋Δ • Ruby 3x3: Ruby3ʹ޲͚ͯͷRubyͷߴ଎Խ • Shopify/bootsnap: Railsͷىಈߴ଎Խ Rails Developers Meetup 2017 24

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Railsͱ͍͏ٕज़બ୒ • খʙதن໛WebΞϓϦέʔγϣϯͰ͋Ε͹े෼RailsͰઓ͑Δ • ϚΠΫϩαʔϏεԽΛߟ͑Δखલͷن໛Ͱ͋Ε͹ɺRailsϞϊ ϦεͰ ! • 2018೥΋Rails͸༗ޮͳWebΞϓϦέʔγϣϯϑϨʔϜϫʔΫͷ બ୒ࢶͰ͋Γଓ͚Δ • ϕλʔΦϧλφςΟϒ͕ग़ݱ͠ͳ͍ݶΓ͸ͦ͏ͩΖ͏ Rails Developers Meetup 2017 25

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ʮRailsͰ·ͩফ໣͍ͯ͠Δͷʁʯ Rails Developers Meetup 2017 26

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ফ໣͢Δ͜ͱͳ͘ɺ RailsͷϨʔϧʹਖ਼͘͠৐ͬͯ ࠷ߴͷDXʢ։ൃମݧʣΛಘ·͢ɻ Rails Developers Meetup 2017 27

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Thanks Rails Developers Meetup 2017 28