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JōtaiͰ͡ΊΔ ܰྔ React.jsεςʔτཧ Super lightweight and primitive state management for React.js Gunma.web #44 ϑϦʔςʔϚ 2022.2.5 @ Online Tsubasa SEKIGUCHI
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TinyKitten Freelance frontend engineer I 💖 OSS & Cat🐈 Born in Gunma🐴 Live in Tokyo🗼
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Tsubasa SEKIGUCHI Λڌͱ͢Δ܈അݝલڮࢢੜ·ΕͷϑϦʔϥϯεͷ ϑϩϯτΤϯυΤϯδχΞɻ ͖ͬͨΜͱݺΕ͍ͯ·͢ɻ ͪͳΈʹࠓ26ࡀʹͳΓ·ͨ͠ɻ
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෦ςελʔืूத TrainLCD ຊશࠃͷమಓ࿏ઢͰ͑Δ ৽ײ֮ͷφϏήʔγϣϯΞϓϦͰ͢ɻ
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͡Ίʹ օ༷ʜ React.jsͷεςʔτཧɺͲ͏ͯ͠·͔͢ʁ RecoilΛओʹ͍ͬͯ·͢ɻ
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͡Ίʹ ࠓճͷεϥΠυͰ Jōtaiͱ͍͏εςʔτཧϥΠϒϥϦ ʹ͍ͭͯ͠·͢ɻ
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JōtaiͬͯԿʁ ฏͨ͘ݴ͏ͱʜ ϓϦϛςΟϒ͔ͭॊೈͳ React.js༻ εςʔτཧϥΠϒϥϦ ൃԻjoe-tieͱຊޠͱಉ͡Ͱ͢ɻ
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ެࣜͷઆ໌͔ΒҾ༻͢Δͱʜ ϘτϜΞοϓɾΞϓϩʔνͷεςʔτϚωʔδϝϯτ Recoil͔ΒΠϯεύΠΞ͞ΕͨAtomicͳϞσϧ TypeScriptࢤͷඇৗʹϛχϚϧͳAPIΛ࣋ͭ JōtaiͬͯԿʁ
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JōtaiΛ͏ͱԿ͕خ͍͔͠ Pros.
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όϯυϧαΠζʜ Mini fi ed 8.1kB Mini fi ed + Gzipped 3.2kB JōtaiΛ͏ͱԿ͕خ͍͔͠ https://bundlephobia.com/package/
[email protected]
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ҰํRecoilʜ Mini fi ed 72.3kB Mini fi ed + Gzipped 21.1kB JōtaiΛ͏ͱԿ͕خ͍͔͠ https://bundlephobia.com/package/
[email protected]
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JōtaiΛ͏ͱʜ Mini fi ed 64.2kB Mini fi ed + Gzipped 17.9kB ͷݮ͕Ͱ͖·͢ 0KB 20KB 40KB 60KB 80KB Mini fi ed Gzipped Recoil Jōtai JōtaiΛ͏ͱԿ͕خ͍͔͠
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΄͔ʹ͜ΜͳϢʔςΟϦςΟ(jotai/utils)͕͋Γ·͢ localStorageͰatom(state)ͷӬଓԽ SSRಋೖ࣌ͷϋΠυϨʔτ Redux෩ͷReducer/ActionTypes JōtaiͬͯԿʁ ެ͔ࣜΒҾ༻atomӬଓԽͷσϞ
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JōtaiͷΠϚΠνͳͱ͜Ζ Cons.
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Ͳ͜ͰatomΛ࡞Εͯ͠·͏ͷͰʜ ComponentͰatomΛ࡞Δͱ͖ɺ ՃͰuseMemo/useRefͰ ϝϞԽΛ͢Δඞཁ͕͋Δ ެ͔ࣜΒҾ༻atom͕ಈతʹੜ͞Εͳ͍Α͏ʹ͢ΔσϞ JōtaiͷΠϚΠνͳͱ͜Ζ
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atomWeakMapʹ֨ೲ͞ΕΔͷͰʜ atom͕ͯ͢ͷίϯϙʔωϯτ͔Β ࢀর͞Εͳ͘ͳͬͨ߹ ΞϯϚϯτ࣌ͳͲ GCͰ͕ॳظԽ͞ΕΔ JōtaiͷΠϚΠνͳͱ͜Ζ https://twitter.com/dai_shi/status/1380885195549597696
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Recoil vs Jōtai ͦͦɺ JōtaiRecoilͱԿ͕ҧ͏ͷʁ
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։ൃऀ RecoilFacebookνʔϜʹΑͬͯ։ൃ͞Ε͍ͯͯɺ JōtaiPoimandres(ݩreact-spring) νʔϜͷҰ෦։ൃऀʹΑͬͯ։ൃ͞Ε͍ͯΔ Recoil vs Jōtai
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։ൃͷج४ Recoilେن։ൃ༷ʑͳཁٻʹ ରԠ͢ΔΑ͏ʹઃܭ͞Ε͍ͯΔ JōtaiϓϦϛςΟϒͳAPIΛॏࢹ͢ΔઃܭΛ͍ͯ͠Δ Recoil vs Jōtai
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ٕज़తͳࠩҟ RecoilBUPNΦϒδΣΫτͷkeyʹରԠ͍ͯ͠Δ Jōtaiatomͷstring keyʹରԠ͍ͯ͠Δ Recoil vs Jōtai TrainLCDͷҰ෦ίʔυൈਮ(Recoil)
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ٕज़తͳࠩҟ RecoilBUPNΦϒδΣΫτͷkeyʹରԠ͍ͯ͠Δ Jōtaiatomͷstring keyʹରԠ͍ͯ͠Δ Recoil vs Jōtai TrainLCDͷҰ෦ίʔυൈਮ(Recoil)
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ݸਓతʹʜ େ͖ͳϓϩδΣΫτͷ߹ͬͺΓɺ Recoil͕҆৺͔ͳͱࢥ͍·͢ɻ খ͍͞ϓϩδΣΫτɺContext APIͰࠈʹͳ͍ͬͯΔ ϓϩδΣΫτʹɺ JōtaiΛಋೖ͍͍͔ͯ͠ͳͱࢥ͍·͢ɻ ·ͱΊ
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खલຯḩͰ͕͢ʜ JōtaiΛͬͨϓϩδΣΫτΛ࡞Γ·ͨ͠ɻ Wordle෩ͷࠃͷӺ໊ͯήʔϜͰ͢ɻ ͥͻ͓ࢼ͍ͩ͘͠͞ɻ JōtaiΛͬͨϓϩδΣΫτ IUUQTTUBUMFUJOZLJUUFONF
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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ Thank you for listening! Gunma.web #44 ϑϦʔςʔϚ 2022.2.5 @ Online Tsubasa SEKIGUCHI