ユーザーが編集中の状態管理について考えよう

by Ryusou

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ɹʮϥΫεϑϩϯτΤϯυ-5ձWPMʯɹΓΎʔͦ͏ Ϣʔβʔ͕lฤूதzͷঢ়ଶ؅ཧ ʹ͍ͭͯߟ͑Α͏

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ΓΎʔͦ͏!SZVTPV@NULI w ֶߍͷઌੜ΍ͬͯ·ͨ͠ʂ w גࣜձࣾNJDSP$.4'SPOUFOE&OHJOFFS%FWSFM ɹɹ3FBDUɾ5ZQF4DSJQU͕޷͖ɻࠓ೔͸NJDSP$.4։ൃʹ·ͭΘΔ࿩Λ͠·͢ w ΠϕϯτΛӡӦ͍ͯ͠·͢✊ +BNTUBDLษڧձʮδϟϜδϟϜʂʂ+BNTUBDLʯ ࡛ۄݝ+BWB4DSJQUษڧձʮ4BJUBNBKTʯ

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͍͖ͳΓͰ͕͢ɾɾɾ

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͜Μͳܦݧ͋Γ·ͤΜ͔ʁʁʁ ࡞੒தͩͬͨจষ͕ফ͑ͯ ͍ͯΔͳ͋ɻŷŬŒŷŬŒ ϑΥʔϜೖྗதͰɺผλϒҠͬ ͨΒফ͑ͯΔΜ͚ͩͲʜʂʂ ͏ʔΜɺೖྗதͷେࣄͳ σʔλอଘ๨ΕͪΌͬͨ

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ฤूதͷঢ়ଶͬͯʜʁ $SFBUF 6QEBUF %FMFUF FY ϒϩάΛॻ͘8&#ΞϓϦέʔγϣϯ هࣄΛ࡞੒ʂอଘPSެ։ ϘλϯΛԡ͢ هࣄΛߋ৽ʂอଘPSߋ৽ ϘλϯΛԡ͢ هࣄΛ࡟আʂ࡟আϘλϯ Λԡ͢

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ฤूதͷঢ়ଶͬͯʜʁ $SFBUF 6QEBUF %FMFUF FY ϒϩάΛॻ͘8&#ΞϓϦέʔγϣϯ هࣄΛ࡞੒ʂอଘPSެ։ ϘλϯΛԡ͢ هࣄΛߋ৽ʂอଘPSߋ৽ ϘλϯΛԡ͢ هࣄΛ࡟আʂ࡟আϘλϯ Λԡ͢ ͜ͷؒͷঢ়ଶΛͲ͏σβΠϯ͢Δ͔͕େࣄͱ͍͏࿩

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NJDSP$.4ͷࣄྫ "1*εΩʔϚઃఆը໘ NJDSP$.4ͱ͸ )FBEMFTT$.4 "1*ϕʔε εΩʔϚΛࣗ༝ࣗࡏ ʹ࡞੒ IUUQTNJDSPDNTJP

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NJDSP$.4ͷࣄྫ "1*εΩʔϚઃఆը໘

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NJDSP$.4ͷࣄྫ "1*εΩʔϚઃఆը໘ ͲͷΑ͏ʹzฤूதzͰ͋Δ͔Λ఻͑Δ͔ʁ

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NJDSP$.4ͷࣄྫ ฤूதͰ͋Δ͜ͱΛೝ஌ͤͯ͋͛͞ΔσβΠϯ

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NJDSP$.4ͷࣄྫ ޡૢ࡞Λ๷͙ɹΞϥʔτɾμΠΞϩάɾϦϩʔυݕ஌

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NJDSP$.4ͷࣄྫ ࢖͍Ͳ͜ΖΛߟ͑Δ Ͱ͸ɺೖྗͷ͋Δը໘Ͱ͸શ࣮ͯ૷ͨ͠Βྑ͍ͷͰ͸ʜʁ ࢥߟఀࢭͨ͠ΓΎʔͦ͏͘Μ

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NJDSP$.4ͷࣄྫ ࢖͍Ͳ͜ΖΛߟ͑Δ Ͱ͸ɺೖྗͷ͋Δը໘Ͱ͸શ࣮ͯ૷ͨ͠Βྑ͍ͷͰ͸ʜʁ ࢥߟఀࢭͨ͠ΓΎʔͦ͏͘Μ

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NJDSP$.4ͷࣄྫ ࢖͍Ͳ͜ΖΛߟ͑Δ ɾ΍Γ͗͢͸ྑ͘ͳ͍ ɾΞϥʔτ͸Ϣʔβʔͷಈ࡞Λ੍ޚ͢Δ ͍ΘΏΔϞʔυ ɾεςʔλεόʔ͸Ϣʔβʹͱͬͯຊ࣭తͳ৘ใͰ͸ͳ͍έʔε΋͋Δɻ ˠϢʔβʔͷಈ࡞ΛࢭΊΔՁ஋ͷ͋Δ΋ͷͳͷ͔ʁ ˠϢʔβʔͷ৘ใΛࢧԉ͍ͯ͠Δ͔ʁ·ͨɺ๦͛ʹͳ͍ͬͯͳ͍͔ ɹΛߟ͑Δ εςʔλεόʔͷେ͖͞ɺσβΠϯɺ৭ɺ࢖͍Ͳ͜Ζ ɻ

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࣮૷ฤɿαϯϓϧ3FBDU VTF$POUFYUͰ؅ཧ͢Δ w 3FBDUͰ͸3FEVYʜFUDͳͲঢ়ଶ؅ཧͷબ୒ࢶ͕ଟ͍ w ࠓճͷ࣮૷Ͱ͸VTF$POUFYUΛ࢖༻ ɹVTF$POUFYU͚ͩͰΞϓϦέʔγϣϯͷঢ়ଶ؅ཧ͸ΦϨΦϨʹͳΓ͕ͪ ɹࠓճͷ͍࣮ܰ૷Λ3FEVYͱ͔ͷঢ়ଶ؅ཧʹؚΊͨ͘ͳ͍ɻ ˠ੍͍͔ͭ͘໿Λ΋͏͚࣮ͯ૷͢Δɹ

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VTF$POUFYUͷ࢖༻࣌ͷ੍໿ $POUFYUΛ$PNQPOFOUʹFYQPSU͠ͳ͍ ɾ$POUFYU͕$PNQPOFOUʹFYQPSU͞Εͨ࣌఺Ͱঢ়ଶ؅ཧ͕ൃੜ͢Δ ɾ)PPLT಺ʹ$POUFYUΛӅṭ ͳΜͳΒಉϑΝΠϧͰ΋ྑ͍͔΋ ɹ $POUFYU )PPLT

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VTF)BT%JGG)PPLT $POUFYU͸ॳظ஋ͱߋ৽ܥͰ෼ׂ IBT%J ff TFU)BT%J ff ෆཁͳϨϯμϦϯάΛ๷͙ $POUFYU

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VTF)BT%JGG)PPLT ΦϒδΣΫτͷൺֱ 5ZQF4DSJQUEFFQEJWF ʮ౳ՁԋࢉࢠͷಉҰੑʯ

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VTF)BT%JGG)PPLT VTF& ff FDUͷΫϦʔϯΞοϓ ը໘ભҠ࣌ʹ͸4UBUFΛࣺͯΔ ϖʔδΛލ͍Ͱͷঢ়ଶ؅ཧ͸͠ͳ͍

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VTF)BT%JGG)PPLT $PNQPOFOUଆ IBT%J ff Ͱ6*ͷग़͠Θ͚ɺEJTBCMFEͷ੍ޚͳͲΛߦ͏ɻ )PPLTͷ஋ͷΈΛ࢖͏ɻ$POUFYUʹ͍ͭͯ$PNQPOFOUଆ͸ ஌Βͳ͍͜ͱ͕ॏཁ

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·ͱΊ lϢʔβʔ͕ʮฤूதʯͷঢ়ଶ؅ཧ͸ॏཁ͚ͩͲɺຊےͰ͸ͳ͍ɻ ͦͷ͜ͱΛ೦಄ʹ͓͍ͯσβΠϯɾ࣮૷͢΂͠l #ZΓΎʔͦ͏

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ࢀߟʹ͍͍ͤͯͨͩͨ͞ຊɾαΠτ 5IBOLTʂ ɾஶॻ ɹʰΦϒδΣΫτࢦ޲6*σβΠϯʱஶऀιγΦϝσΟΞגࣜձࣾɹ্໺ֶɺ౻Ҫ޾ଟ ɾαΠτ ɹʮ3FBDU$POUFYUΛFYQPSU͢Δͷ͸ΞϯνύλʔϯͰ͸ͳ͍͔ͱߟ͑ΔʯIUUQTCMPHTUJOJOLBSUJDMFTEPOPUFYQPSUSFBDUDPOUFYU ɹʮ$POUFYU"1*ͱVTF3FEVDFSͰDVTUPNIPPLΛ࡞Δ࣌ͷςϯϓϨʔτʯIUUQTCMPHPKJTBOJPDPOUFYUSFEVDFSDVTUPNIPPL ɹʮਖ਼͘͠࢖͏3FBDU$POUFYUʯIUUQT[FOOEFWZVUB@VSBBSUJDMFTSFBDUDPOUFYUBQJ ɹʮ౳ՁԋࢉࢠͷಉҰੑʯIUUQTUZQFTDSJQUKQHJUCPPLJPEFFQEJWFSFDBQFRVBMJUZ

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͋Γ͕ͱ͏͍͟͝·ͨ͠ʂʂ !SZVTPV@NULI ΓΎʔͦ͏