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Immutable.js with Flowtype
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Takumi Ohashi
July 14, 2017
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7.2k
Immutable.js with Flowtype
Takumi Ohashi
July 14, 2017
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Transcript
Immutable.js with Flowtype @_tohashi
୭ • Takumi Ohashi • twitter: @_tohashi • GitHub: @tohashi
• ϑϦʔʢגʣͷΤϯδχΞ
ίϯϙʔωϯτࢦʢReactʣ ୯ҰํͷσʔλϑϩʔʢFluxʣ ܕγεςϜʢFlowtypeʣ
Λܦͨਓ͕ؒ ࣍ʹٻΊ͕ͪͳͷ
Πϛϡʔλϒϧ
Immutable.js • FacebookͷΠϛϡʔλϒϧͳΦϒδΣΫτ Λѻ͏ͨΊͷϥΠϒϥϦ • 2014͔Β͋Δ • ReactFlowtype΄Ͳʹͳͬͯͳ͍͠ ΘΕͯͳ͍ҹ
Why Immutable.js?
Why Immutable.js? • ෭࡞༻ͷগͳ͍ΦϒδΣΫτૢ࡞ • ΤϯςΟςΟૢ࡞ϩδοΫͷ • ϨϯμϦϯά੍ʹΑΔύϑΥʔϚϯενϡʔ χϯά
෭࡞༻ͷগͳ͍ΦϒδΣΫτૢ ࡞
෭࡞༻ͷগͳ͍ΦϒδΣΫτૢ ࡞
ΤϯςΟςΟૢ࡞ͷ
Immutable Model Class • ʹ
ΤϯςΟςΟૢ࡞ͷ
ෆཁͳϨϯμϦϯάͷ੍
ݒ೦
େن։ൃͳΒܕ͕΄͍͠
Immutable.js + Flowtype
it should ͍͍ײ͡ʹ ܕ͕͍ͭͨΠϛϡʔλϒϧͳ ΦϒδΣΫτΛѻ͑ͯ࠷ߴ
FlowtypeʹΑΔܕఆٛ
FlowtypeʹΑΔܕఆٛ
Immutable.Recordͷܕఆٛ
ͦΕҎલͷͱ͜ΖͰΤϥʔ
ܕఆٛϑΝΠϧΛௐΔ
ผ్ΫϥεఆٛΛ༻ҙ͢Δ
ͦͷ্ͰܧঝલʹΩϟετ
ظ௨ΓͷΤϥʔ
ͳΜͱ͔ ܕ͚Ͱ͖ͨ
͔ʹࢥ͕͑ͨ
None
Immutable.jsͷܕఆٛ • ίϝϯτΞτ෦ͷΑ͏ͳهड़ݱঢ়Ͱ͖ͳ͍
None
Immutable.js + Flowtype
it should ͍͍ײ͡ʹ ܕ͕͍ͭͨΠϛϡʔλϒϧͳ ΦϒδΣΫτΛѻ͑ͯ࠷ߴ
- ͍͍ײ͡ + ͭΒ͍ - ࠷ߴ + ยखམͪ 2 failure
ݟ • Immutable.Record + Flowtype ͭΒ͍ • ࡶͳهड़ͷʹܕ҆શͰͳ͍ • IssueݟΔͱօಉ༷ͷΛ๊͍͑ͯΔ
• ͍͔ͭ͘ͷղܾͷஹ͠ • ಉࣾ͡ͷOSSͳΒେৎͩΖ͏Έ͍ͨͳࡶͳߟ͑Α͘ ͳ͍
͋Γ͕ͱ͏͍͟͝·ͨ͠
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