ReactコンポーネントとCSSコンポーネントは1対1なのか問題について

by Kazuki Shibata

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3FBDUίϯϙʔωϯτͱ$44ίϯϙʔωϯτ͸  ରͳͷ͔໰୊ʹ͍ͭͯ !TIJCF

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σβΠφʔ / ϑϩϯτΤϯυΤϯδχΞ γϕ @shibe97

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ॳΊʹݴ͓ͬͯ͘ͱ

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๻͸ର೿Ͱ͢

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Ҏલ͸ର͡Όͳ͍೿Ͱͨ͠

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͔͠͠ɺ࠷ۙ͸Ұपճͬͯɺ ΍ͬͺର͡ΌͶʁͬͯͳͬͯ·͢

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3FBDUίϯϙʔωϯτ ͱ $44ίϯϙʔωϯτ

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)5.-ͷ·ͱ·Γ ͱ $44ͷ·ͱ·Γ

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)5.-΋$44΋ͲͪΒ΋7JFXΛදݱ͢ΔͨΊͷ΋ͷ $44͸)5.-ʹඥͮ͘ ෼ղͰ͖Δཻ౓΋౳͍͠

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3FBDUίϯϙʔωϯτ͸7JFXͱϩδοΫΛ ෼཭͢Δ͜ͱͰ͔ͳΓࡉ͔͘෼ղͰ͖Δ

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1SFTFOUBUJPOBMBOE$POUBJOFS$PNQPOFOUT 1SFTFOUBUJPOBM$PNQPOFOU ࠶ར༻ՄೳͳϐϡΞͳίϯϙʔωϯτ $POUBJOFS$PNQPOFOU SFEVYͷDPOOFDU ؔ਺Λར༻͠ɺDPNQPOFOUBDUJPOTUPSFΛඥ෇͚Δ

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5XJUUFSͷλΠϜϥΠϯͷྫ

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)PNF5JNFMJOFͱ.FOUJPOT5JNFMJOF

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5JNFMJOF ίϯϙʔωϯτ 5JNFMJOF ίϯϙʔωϯτ

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5JNFMJOF ίϯϙʔωϯτ 5JNFMJOF ίϯϙʔωϯτ )PNF5JNFMJOFίϯςφ .FOUJPOT5JNFMJOFίϯςφ

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5JNFMJOF ίϯϙʔωϯτ 5JNFMJOF ίϯϙʔωϯτ )PNF5JNFMJOFίϯςφ .FOUJPOT5JNFMJOFίϯςφ UIJTQSPQTHFU5JNFMJOF HFU)PNF5JNFMJOF HFU.FOUJPOT5JNFMJOF

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+49CSPXTFSJGZXFCQBDL ͕ঢ়گΛม͑ͨ

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+49ͱͯ͠)5.-Λ+4্Ͱ؅ཧͰ͖ΔΑ͏ʹͳͬͨ CSPXTFSJGZXFCQBDLΛ༻͍ͯɺ+4ϑΝΠϧΛ෼ׂͯ͠  ؅ཧͰ͖ΔΑ͏ʹͳͬͨ )5.-͕$44ͱಉ౳ʹ෼ׂͰ͖ΔͷͰ͋Ε͹ɺཻ౓͸ἧ͏

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"UPNJD%FTJHO

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͜ΕҎ্ ෼ׂͰ͖ͳ͍୯Ґ

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8FCʹ͓͍ͯɺίϯϙʔωϯτ͸ )5.-Ͱߏ੒͞Ε͍ͯΔ

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͜ΕҎ্෼ղͰ͖ͳ͍  )5.-ͷঢ়ଶͱ͸ʁ

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)5.-λάͦͷ΋ͷ

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ۃ୺ͳ࿩ɺ%0.͕ͭͭ  ίϯϙʔωϯτʹ੒Γ͏Δ

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%0.πϦʔ

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%0.πϦʔ "UPN

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%0.πϦʔ .PMFDVMF

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%0.πϦʔ 0SHBOJTN

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%0.πϦʔ

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ϕετ͸"UPN୯ҐͰ  ίϯϙʔωϯτԽ

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ͨͩ͠ɺ޻਺ͱͷ݉Ͷ߹͍΋͋Δ ڞ௨Խ͢΂͖΋ͷ͕ग़͖ͯͨλΠϛϯάͰখ͍͞  ίϯϙʔωϯτʹ෼ղ͍ͯ͘͠ͷ΋͋Γ

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͚ͩ͜͜ίϯϙʔωϯτԽ͢Δ͜ͱʹ  ҙຯ͸͋Δͷʁ 2

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ҙຯ͸͋Δ "

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/BNFγϕ/BNF

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/BNFKT

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ελΠϧࠐΈͷίϯϙʔωϯτʹͰ͖Δ ϝϦοτ

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ଞͷίϯϙʔωϯτʹྲྀ༻Ͱ͖Δ ϝϦοτ

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$44ίϯϙʔωϯτͷ೉͍͠ͱ͜Ζ ద༻͢ΔελΠϧ͸ίϯϙʔωϯτ಺ʹด͍ͯ͡Δඞཁ͕͋Δ ֎෦ʹӨڹͷ͋ΔελΠϧ͸֎ଆʢ਌ʣͷίϯϙʔωϯτͰࢦఆ ͢Δ΂͖

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4DSFFO/BNF\ DPMPS qPBUMFGU NBSHJOMFGUQY ^ DMBTT/BNFl4DSFFO/BNFz DTT KTY

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4DSFFO/BNF\ DPMPS qPBUMFGU NBSHJOMFGUQY ^ º º DMBTT/BNFl4DSFFO/BNFz DTT KTY

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4DSFFO/BNF\ DPMPS qPBUMFGU NBSHJOMFGUQY ^ º º 5XFFU@@TDSFFO/BNF\ qPBUMFGU NBSHJOMFGUQY ^ DMBTT/BNFl4DSFFO/BNF5XFFU@@TDSFFO/BNFz DTT KTY

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յΕͳ͍$44ʹ͢ΔͨΊʹ ֤$44ίϯϙʔωϯτʹඞཁͳ͜ͱ ࣗ෼ࣗ਎ͷελΠϦϯά ࢠίϯϙʔωϯτͷϨΠΞ΢τ

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਌͸ࢠཁૉΛ஌͍ͬͯΔ ࢠ͸਌ཁૉΛ஌Βͳ͍

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ͦΕͬͯ3FBDUίϯϙʔωϯτ΋Ұॹ

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͔ͩΒཻ౓΋ἧ͏

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·ͱΊ 3FBDUίϯϙʔωϯτ΋$44ίϯϙʔωϯτͱಉ౳ͷཻ౓Ͱ ࡉ෼ԽͰ͖Δʢ͸ͣʣ ίϯϙʔωϯτ͸ࡉ෼Խ͢Δʹӽͨ͜͠ͱ͸ͳ͍͕ɺ  ޻਺ͱͷτϨʔυΦϑ

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5IBOLT !TIJCF