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Create React App Wakai Shinichiro @se_kamo

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Wakai @se_kamo ؔ੢ϑϩϯτΤϯυUG GFO 2016 ౷ׅ ݉ ࣮ߦҕһ௕ ަ໺ϲݪ ೔ຊҨ࢈ϓϩδΣΫτ ٕज़෦௕ גࣜձࣾάϥουΩϡʔϒ ΤϯδχΞ

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React Λ࢖͍͍ͨʂ

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ͨͩɺ؀ڥ͕੔͑Εͣɺ அ೦ɻɻ

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͙͢ʹίʔυΛॻ͖͍ͨʂ

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Create React App

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Reactͷ؀ڥΛ 1෼ͰߏஙͰ͖Δπʔϧ

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7݄ʹFacebook͕ެ։ ES6΍JSXʹରԠ

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ߏஙͯ͠Έ·͠ΐ͏

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npm Πϯετʔϧ

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npm install -g create-react-app

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ίϚϯυͨͨ͘

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create-react-app <σΟϨΫτϦ໊>

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؀ڥ׬੒ʂʂʂ

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ReactΞϓϦΛ্ཱͪ͛Δ

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npm start

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্ཱ͕ͪͬͨ

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ެ։ϑΝΠϧͷ ग़ྗ΋؆୯

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npm run build

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build ͷ௚Լʹ ެ։ϑΝΠϧΛग़ྗʂ

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ͳͥ͜Μͳ͜ͱ͕Ͱ͖Δͷ͔ʁ

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Create React App Ͱ ࢖ΘΕ͍ͯΔٕज़

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• webpack • webpack-dev-server • style-loader • Babel • Autoprefixer • ESLint

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webpack • ࠷దͳܗʹ࡞Γม͑ΔҝͷπʔϧʢϏϧυπʔ ϧʣ • Jade΍CoffeeScriptΛίϯύΠϧ, ϑΝΠϧͷ minifyͯ͘͠ΕΔ • Create React App Ͱ͸ES2016΍JSXͷτϥϯ εύΠϧΛͯ͘͠Ε͍ͯΔ

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webpack-dev-server • ϩʔΧϧαʔόʔΛىಈͯ͘͠ΕΔ • ϑΝΠϧΛมߋͨ͠ࡍ͸ݕ஌ͯ͠ɺϒϥ΢β ΛࣗಈతʹϦϩʔυͯ͠Δ

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style-loader • JavascriptͷίʔυதͰstylesheetΛrequireग़ དྷΔΑ͏ʹ͢Δπʔϧ • ෦඼ཁૉʹඞཁͳελΠϧΛɺඞཁͳ͚࣌ͩ ద༻͢Δ͜ͱ͕Ͱ͖Δ • ϦΫΤετ਺ΛݮΒ͢͜ͱ͕Ͱ͖Δ

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Babel • ES6΍ES7, JSXΛτϥϯεύΠϧ͢Δπʔϧ • Ұ෦ͷϒϥ΢β͕ES5·Ͱ͔͠ରԠͯ͠ͳ͍ͷ Ͱɺ։ൃ͞Εͨͷ͕Babel

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ESLint • ߏจʹϛε͕ͳ͍͔ΛνΣοΫͯ͘͠ΕΔ੩ తݕূπʔϧ • ؆୯ʹߏจνΣοΫΛΧελϚΠζͰ͖Δ • ES6, ES7, JSXͷه๏Λαϙʔτ͍ͯ͠Δ

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·ͱΊ ؆୯ʹͰ͖ΔΑʂ

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ಓ۩͸ἧ͍·ͨ͠

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ޙ͸ั·͑Δ͚ͩͰ͢Ͷ

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͝੩ௌ͍͖ͨͩɺ ͋Γ͕ͱ͏͍͟͝·͢ɻ