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私が考えるReactのよさ #fukuokajs
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Hiroyuki ANAI
February 26, 2019
Programming
2
810
私が考えるReactのよさ #fukuokajs
Hiroyuki ANAI
February 26, 2019
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Transcript
'VLVPLB+4 !QJSPTJLJDL 5VF
w ݀Ҫ w !QJSPTJLJDL w ϠϑʔגࣜձࣾΤϯδχΞ w "QFY-FHFOETʹڵຯ͕͋Γ·͢ w 'BSDSZ/FX%BXOʹڵຯ͕͋Γ·͢
w %BZT(POFʹʢҎԼུʣ
3FBDUೖʢᠳӭࣾʣ ڞஶ 8&# %#13&44 ࿈ࡌʮͲΜͱ͍͜ϑϩϯτΤϯυ։ൃʯ ࿈ࡌ࠷ऴճʂ
ΑΖ͘͠ ͓ئ͍க͠·͢
None
ొஃऀͷํʑ͔Βɺ ʮ˓˓͕͖ʂʯ ʮ˓˓͕ັྗʂʯ ʮ͕͜͜࠷ߴʂʯ ͳͲɺ ؾͷෝ͘··ʹ͓͍ͯͨͩ͜͠͏ͱ ࢥ͍·͢ʂ
ࢲ͕ߟ͑Δ3FBDUͷΑ͞ w γϯϓϧ͞ w %9ͷΑ͞ w એݴతʹ6*ΛఆٛͰ͖Δ
Α͞ᶃɿγϯϓϧ͞
3FBDUͷγϯϓϧ͞ w ʮ"+BWB4DSJQUMJCSBSZGPSCVJMEJOHVTFSJOUFSGBDFTʯ w ͣͬͱมΘͬͯͳ͍ w 3FBDU୯ମͰΞϓϦέʔγϣϯΛ࡞Δ͜ͱك w Կ͔ͱΈ߹Θͤͯ։ൃ w
3FEVYɺίϯϙʔωϯτूFUD
ݸਓͷΈ͔͠Εͳ͍ w ϞϊϦεͱൺΔͱϝϦσϝ͋Δͱࢥ͏ w γϯϓϧͳύʔπΛΈ߹ΘͤͯɺશମΛߏங͢Δ w ύʔπຖʹཧղ͢ΕΑ͍ͷͰɺཧղ͍͢͠ w ύʔπ୯ҐͰަՄೳ w
։ൃπʔϧϞϊϦγοΫͰɺ ϥΠϒϥϦγϯϓϧͳͷͷΈ߹Θ͕ͤݸਓతͳΈ
Α͞ᶄɿ%9
%9 w %FWFMPQFS&YQFSJFODFʹ։ൃऀͷମݧ w %9%FWFMPQFS&YQFSJFODFʢ։ൃମݧʣॏཁͩ IUUQTHGYIBUFOBCMPHDPNFOUSZ w %969ͷҰछͰ͋Δ w %9͕Α͍ͱʑͷ։ൃΛָ͠ΊΔΑ͏ʹͳΓɺ
ؾ࣋ͪʹ༨༟͕Ͱ͖Δ w %9͕ѱ͍ͱ։ൃΛָ͠Ίͣɺ ʮఆΊΒΕͨλεΫʯҎ֎ͷ͜ͱΛͨ͘͠ͳ͘ͳΔ
ϥΠϒϥϦɾϑϨʔϜϫʔΫ ͷ%9 w υΩϡϝϯτ͕ἧ͍ͬͯΔ͔ɺ༁͞Ε͍ͯΔ͔ w σόοάπʔϧ͕͋Δ͔ w ΤίγεςϜͱੑ͕͋Δ͔ w FY
&4-JOUɺ5ZQF4DSJQUʹରԠ͍ͯ͠Δ͔ʁ
w &4-JOU 5ZQF4DSJQUͱͷ૬ੑ͔ͳΓ͍͍ w ͍࢝Ίͨࠒʢɺόʔδϣϯ͕͘Β͍ ʣ पลπʔϧͷରԠ͕Α͔ͬͨهԱ w &4-JOUͷ+49ରԠ݄ɺ #BCFMʢUPʣ݄ʹ+49αϙʔτ͍ͯͨ͠
3FBDUͷ%9
3FBDUͷ%9 w 3FBDU%FW5PPMTʢެࣜʣ w 6TFS5JNJOH"1*ΛͬͯͷϓϩϑΝΠϦϯά w $ISPNF%FW5PPMTͷύϑΥʔϚϯελϒʹදࣔ͞ΕΔ IUUQTSFBDUKTPSHEPDTPQUJNJ[JOHQFSGPSNBODFIUNMQSPpMJOHDPNQPOFOUTXJUIUIF DISPNFQFSGPSNBODFUBC
3FBDUͷ%9 w ࠷ۙɺυΩϡϝϯτ༁͞Εͨ IUUQTKBSFBDUKTPSH
Α͞ᶅɿ એݴతʹ6*Λهड़Ͱ͖Δ
None
໋ྩతɾએݴత w ݸਓతͳղऍ w ໋ྩతɿ ʢతΛୡ͢ΔͨΊͷʣखॱɾखଓ͖Λॻ͘ w એݴతɿ తΛॻ͘ʢͱखॱɾखଓ͖উखʹͬͯ͘ΕΔʣ
໋ྩతɾએݴత w 3FBDUʹͯΊΔ w 6*ͷߏΛએݴ͢Δ ʢͱɺखଓ͖ɾखॱউखʹͬͯ͘ΕΔʣ w खଓ͖ɾखॱ σʔλͷՃɾมߋɾআʹର͢Δޮతͳ%0.ͷߋ৽ w
Ծ%0.͕Χόʔ
+49 w +BWB4DSJQUͷதʹ)5.-λά͕هड़Ͱ͖Δߏจ w 6*Λએݴతʹهड़Ͱ͖Δ w ͨͩͷ3FBDUDSFBUF&MFNFOUͷҥߏจɺมޙͷ༧ଌָ͕ w એݴతʹهड़Ͱ͖Δ͕+4ͷΛେ͖͘֎Ε͍ͯͳ͍ ͜Ε͕+49
3FBDU)PPLTͰ DMBTTίϯϙʔωϯτએݴతʹ w 3FBDUʹɺίϯϙʔωϯτΛॻ͘ํ๏͕ͭ w ؔPSΫϥε w ίϯϙʔωϯτͰঢ়ଶϥΠϑαΠΫϧͷར༻͕ ඞཁͳ߹ɺΫϥεͰॻ͘ඞཁ͕͋ͬͨ
3FBDU)PPLTͰ DMBTTίϯϙʔωϯτએݴతʹ w 3FBDU)PPLT w ؔίϯϙʔωϯτͰঢ়ଶϥΠϑαΠΫϧΛ ѻ͏Έ w 3FBDUͰՃ
ྫʣը໘αΠζͷऔಘ DMBTTίϯϙʔωϯτ൛
ྫʣը໘αΠζͷऔಘ DMBTTίϯϙʔωϯτ൛ తΛୡ͢ΔͨΊͷखଓ͖
ྫʣը໘αΠζͷऔಘ DMBTTίϯϙʔωϯτ൛ ঢ়ଶΛѻ͏෦ ϥΠϑαΠΫϧΛѻ͏෦
ྫʣը໘αΠζͷऔಘ 3FBDU)PPLT൛ ը໘αΠζΛ͏͜ͱΛએݴ
w VTF8JOEPX4J[F w ը໘αΠζΛࢀর͢Δ͜ͱΛએݴ w SFNPWF&WFOU-JTUFOFSͷखଓ͖એݴͷཪʹӅṭ w એݴతʹهड़Ͱ͖Δ͜ͱͰత͕໌֬ʹͳΔ
·ͱΊ w 3FBDUKTɺ͍͍Αʙ w 3FBDU)PPLTͰΑΓΑ͘ͳͬͨΑʙ w ϑϨʔϜϫʔΫɾϥΠϒϥϦಉ࢜Ͱ͍͍ͱ͜ΖΛ औΓೖΕ͍͋ͬͯΔͷͰɺ΄΅ಉ͜͡ͱ͕Ͱ͖Δ
͋Γ͕ͱ͏ ͍͟͝·ͨ͠