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Vue.js 3 に向けた Vue.js 入門
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kazupon
December 06, 2019
Programming
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6.5k
Vue.js 3 に向けた Vue.js 入門
kazupon
December 06, 2019
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Transcript
Vue.js 3 ʹ͚ͨ Vue.js ೖ Microsoft Ignite The Tour 2019.12.06
@kazupon
ࣗݾհ
PLAID, inc. Vue.js Core Team Member Vue.js Japan User Group
Organizer Vue I18n Author WebAssembly Love ❤ @kazu_pon kazupon kazupon
None
͡Ίʹ
201910݄
Vue.js 3 pre-alpha ެ։ʂ https://twitter.com/vuejs/status/1180159603507638274
vuejs/vue-next Ͱެ։ https://github.com/vuejs/vue-next
2020Q1ʹ͚ͯ։ൃத • RFCͰ༷ΛݻΊͭͭ։ൃ https://github.com/vuejs/rfcs
Vue.js 3 Ͱͷ৽ػೳ • ίϯϙδγϣϯ API • ϑϥάϝϯτ / ϙʔλϧ
• TypeScript ϑϧαϙʔτ • … ͳͲͳͲ https://github.com/vuejs/rfcs
v2 → v3
͍Ζ͍Ζͱ ػೳ͕૿͑ͯ
ഁյతมߋ ͋Δͱ
None
͜ͷ࣌ظʹೖ ͢Δͱେมͦ͏…
None
ͦ͏ ݟ͑ͦ͏Ͱ͕͢
৺͠ͳͯ͘ େৎͰ͢ʂ
ओཁػೳ
΄΅ͦͷ··Ͱ
ಈ͖·͢ʂ
ͱ͍͏Θ͚Ͱ
ࠓ͢͜ͱ
• Vue.js ͷಛͱઃܭࢥ • Vue.js 3 Ͱ௨༻͢Δߏจɾػೳͷհ • ࠷৽҆ఆόʔδϣϯ v2.6.10
Ͱઆ໌ • Vue.js 3 ͷۄػೳ ίϯϙδγϣϯAPIʹ ͍ͭͯܰ͘հ ࠓ͢͜ͱ
Vue.js ʹ͍ͭͯ
Vue.js • ࡞ऀ: Evan You • viewͷϥΠϒϥϦ • 2013ݸਓϓϩ δΣΫτͱͯ͠։࢝
• 20142݄ʹv0.8ެ ࣜϦϦʔε
2015.04.20 Laravel Ͱ࠾༻ܾఆ 2015.10.26 v1.0 Evangelion 2016.10.01 v2.0 Ghost in
the Shell 2019.02.05 v2.6 Macross 2019.12.06 ݱࡏ ࠷৽: v2.6.10 ྺ࢙
• ߴͳٕज़εΩϧ͕ແͯ͑͘Δ • ίϯϙʔωϯτࢦʹΑΔUIߏԽ • ϦΞΫςΟϒͳσʔλόΠϯσΟϯά ಛ
• HTML / JavaScript / CSS ͷجຊ͕ࣝ͋ Ε͙͢ʹ͑Δ • index.html
ͷ script λά͔Β͏͜ͱ͕Ͱ ͖Δ ߴͳٕज़εΩϧ͕ͳͯ͑͘Δ
• ίϯϙʔωϯτͱ͍͏෦ΛΈཱͯͯɺ UI ΛΈͨͯΔ ίϯϙʔωϯτࢦʹΑΔUIߏԽ
• DOM ্ͷσʔλͱJavaScript͕࣋ͭσʔλ ؒͰόΠϯυͯ͠ಉظΛऔΔ͜ͱ͕Ͱ͖Δ ϦΞΫςΟϒͳσʔλόΠϯσΟϯά
ϑϨʔϜϫʔΫ ͱͯ͠ͷ ઃܭࢥ
ϓϩάϨογϒ ϑϨʔϜϫʔΫ
VS ϑϨʔϜϫʔΫͷෳࡶ͞ ΞϓϦέʔγϣϯͷෳࡶ͞
ෆेͳέʔε
None
ෆेͳέʔε ͷ ൺᄻ
None
Φʔόʔͳέʔε
None
Φʔόʔͳέʔε ͷ ൺᄻ
None
ϑϨʔϜϫʔΫͷෳࡶੑ ΞϓϦέʔγϣϯͷෳࡶੑʹରͯ͠ ेͳίετΛPayͰ͖ΔͷͰͳ͚ΕͳΒͳ͍
͔͠͠ͳ͕Β ࣮ࡍͷݱ…
Ϗδωεཁ݅ ઈ͑ͣม͢Δ
ϑϨʔϜϫʔΫ ͜ΕʹରԠͰ͖ͳ͚Ε ͳΒͳ͍
͜Μͳײ͡Ͱελʔτͯ͠ viewίΞ
ن͕େ͖͘ͳ͖ͬͯͨͱ͖ viewίΞ ʴ ϧʔςΟϯάɺঢ়ଶཧ ͕ඞཁʂ
αϙʔτͰ͖Δ ϥΠϒϥϦͳ͚Ε…
ϑϩϯτΤϯυ։ൃ ਏ͍…
ϓϩάϨογϒ ϑϨʔϜϫʔΫ
http://ejje.weblio.jp/content/progressive
ΞϓϦέʔγϣϯͷ ஈ֊తͳมԽཁٻʹԠͯ͡ ղܾͰ͖Δํ๏Λఏڙ͢Δ
Vue.jsຊମ Vue Router Vuex Vue CLI
Vue.jsͰ WebΞϓϦΛ ࡞ͬͯΈΔ
• Vue ΠϯελϯεΛ࡞ • UIදࣔʹඞཁͳσʔλ(ঢ়ଶ)Λఆٛ • ςϯϓϨʔτͰ UI Λએݴ •
Vue ΠϯελϯεΛDOM ʹϚϯτ WebΞϓϦΛ࡞ΔྲྀΕ
ϝοηʔδΛ දࣔͤ͞ΔΞϓϦ
• Vue ίϯετϥΫλ Ͱ new ͢Δ VueΠϯελϯεΛ࡞
• data ΦϓγϣϯʹσʔλΛఆٛ UIදࣔʹඞཁͳσʔλΛఆٛ
• template Φϓγϣϯʹ HTML Λهड़ ςϯϓϨʔτʹUIΛએݴ
• $mount ϝιουͰର DOM ʹϚϯτ VueΠϯελϯεΛDOMʹϚϯτ
࣮ߦ͢Δͱ…
͍͔͕Ͱͨ͠Ͱ ͠ΐ͏͔ʁ
ςϯϓϨʔτ ߏจ
• ΠϯλʔϙϨʔγϣϯ (Interpolation) • σΟϨΫςΟϒ (Directive) ςϯϓϨʔτߏจ
ΠϯλʔϙϨʔγϣϯ ʹ͍ͭͯ
• ϓϩάϥϜʹ͓͍ͯɺ͋ΔมͱҰॹʹ ߏ͞Εͨσʔλʹ͓͍ͯɺίϯύΠϧ ࣌ɺ·࣮ͨߦ࣌ʹม͕ల։͞ΕΔ͜ͱ • ྫ: JavaScript ςϯϓϨʔτϦςϥϧ ΠϯλʔϙϨʔγϣϯͱʁ
• JavaScript Ҏ֎ʹςϯϓϨʔτଘࡏ͢Δ • ςϯϓϨʔτͰҎԼΛαϙʔτ • ςΩετ • HTMLͷଐੑ •
JavaScript ͷࣜ Vue.jsʹ͓͚ΔΠϯλʔϙϨʔγϣϯͱʁ
σΟϨΫςΟϒ ʹ͍ͭͯ
• ϓϩάϥϛϯάݴޠɺιϑτΣΞͷจ຺ ʹ͓͍ͯɺ໋ྩίϚϯυΛ࣮ߦ͢Δͨ Ίʹࢦࣔߏจ • ྫ: nginx (Webαʔό)ͷઃఆϑΝΠϧ σΟϨΫςΟϒͱʁ
• ςϯϓϨʔτʹ͓͍ͯɺWebඪ४༷ʹͳ͍ಛผͳ໋ྩΛ༩ ͑ΔͨΊͷߏจ • v-if / v-show: ཁૉͷදࣔɾඇදࣔͷͨΊͷ݅ఆ • v-for:
ཁૉʹର͢Δ܁Γฦ͠ॲཧ • v-bind: ཁૉʹର͢ΔσʔλͷόΠϯυ(ଋറ) • v-on: ཁૉͷΠϕϯτϋϯυϦϯά • v-model: ೖྗडՄೳͳཁૉͱσʔλؒํʹόΠϯυ Vue.jsʹ͓͚ΔσΟϨΫςΟϒͱʁ
• v-if • v-show v-if / v-show
v-for
v-bind
v-on
v-model
• v-slot • v-text • v-once • v-pre • v-cloak
ͦͷଞͷσΟϨΫςΟϒ
ࢉग़ϓϩύςΟ
• Ұൠతʹɺఆٛ͞Εͨσʔλ(ঢ়ଶ)ͷ ΛݩʹɺͦΕΒσʔλͷࢉग़͞Εͨσʔλ ͷ͜ͱ ྫ: JavaScript ͷ getter ࢉग़ϓϩύςΟͱʁ
• ͨͩ୯ʹܭࢉ ͯ͠ฦ͢σʔ λ͚ͩͰͳ ͘ɺσʔλͷ ͷมߋΛಈ తʹݕͯ͠ දࣔʹөͰ ͖ΔΑ͏ʹ͠ ͍ͯΔ
Vue.jsʹ͓͚Δࢉग़ϓϩύςΟͱʁ
• ςϯϓϨʔτʹΠϯλʔϙϨʔγϣϯ͕ෳ ࡶʹͳ͖ͬͯͨͱ͖ ࢉग़ϓϩύςΟͷϢʔεέʔε ࢉग़ϓϩύςΟ ෦ͰΩϟογϡ͢ΔͷͰ ύϑΥʔϚϯε্͢Δʂ
Υονϟ
• Vue.jsͰఆٛ͞ΕͨσʔλΛࢹͯ͠ɺม ߋ௨Λఏڙ͢Δ Υονϟͱʁ
• ࢉग़ϓϩύ ςΟɺ Υονϟ ͰػೳΛఏ ڙ͍ͯ͠Δ Υονϟͱʁ
ΥονϟΛͬͨίʔυྫ
• ࢉग़ϓϩύςΟͷܭࢉෛՙ͕ߴ͍ • ྫ: ڊେͳσʔλ͔Βࢉग़͢Δ͕ຖճҟͳͬ ͯ͠·͏ • ࢉग़ϓϩύςΟͰͰ͖ͳ͍͜ͱΛΓ͍ͨͱ͖ • ྫ:
αʔό͔Βඇಉظʹऔಘͨ͠σʔλΛݩʹ ࢉग़͍͍ͯͨ͠ͱ͖ ΥονϟͷϢʔεέʔε
ίϯϙʔωϯτ
• ҰൠతͳιϑτΣΞͷ จ຺ʹ͓͍ͯɺϓϩά ϥϜΛ࠶ར༻ʹ͢ΔͨΊ Ϟδϡʔϧͱͯ͠෦Խ ͞Εͨͷ • ϒϩοΫͷΑ͏ʹίϯ ϙʔωϯτΛΈཱͯͯ ߏ͍ͯ͘͠
ίϯϙʔωϯτͱʁ
• UI Λػೳใߏ ʹैͬͯϞδϡʔ ϧԽͨ͠ͷ • ίϯϙʔωϯτΛ Έ߹ΘΔ͜ͱͰ ࣗવͱπϦʔ্ʹ ߏ͞ΕΔ
Vue.jsʹ͓͚Δίϯϙʔωϯτͱʁ
Vue.jsಠࣗͷίϯϙʔωϯτ֓೦ • ୯ҰϑΝΠϧί ϯϙʔωϯτ (Single-file components) • Vue ίϯϙʔω
ϯτͱݺͿ͜ ͱ <HTML> {CSS} ({JS})
• ଞͷίϯϙʔωϯτͱΓऔΓ͢ΔͨΊʹ ΠϯλʔϑΣʔεΛఏڙ͢Δ • ϓϩύςΟ (props) • Πϕϯτ (emits) •
εϩοτ (slots) ίϯϙʔωϯτI/FΛఏڙ͢Δ
ϓϩύςΟ(Props) • ଞͷίϯϙʔωϯτ͔ΒσʔλΛड͚औΔ ͨΊͷΠϯλʔϑΣʔε Child ίϯϙʔωϯτ Parent ίϯϙʔωϯτ Props ܦ༝Ͱ͢
Πϕϯτ (emits) • ίϯϙʔωϯτΛ͏ଆ()ʹσʔλΛ ͨ͢ΊͷΠϯλʔϑΣʔε Child ίϯϙʔωϯτ Parent ίϯϙʔωϯτ $emitͰ
Πϕϯτ Λൃߦ
εϩοτ (slots) • ίϯϙʔωϯτʹ͏ଆ()͔Βίϯςϯ πΛࠩ͠ࠐ·ͤΔͨΊͷΠϯλʔϑΣʔε Child ίϯϙʔωϯτ Parent ίϯϙʔωϯτ <slot>ʹ
ࠩ͠ࠐ·ΕΔ
ίϯϙʔωϯτؒσʔλͷΓऔΓͷϧʔϧ • σʔλ͕ྲྀΕΔํΛنΛઃ͚Δ͜ͱͰ ෳࡶʹͳΔͷΛආ͚Δ
ଞʹ৭ʑ ͋Γ·͕͢
͜ͷล͓͑ͯ͞ ͓͍͍ͯͩ͘͞ʂ
Vue.js 3 ίϯϙδγϣϯ API
ίϯϙδγϣϯAPIͱʁ • ؔϕʔεͰఏڙ͞ΕΔ API • ίϯϙʔωϯτΛϩδοΫΛࣗ༝ߴ͘ Έ߹Θ࣮ͤ͢Δ͜ͱ͕Ͱ͖Δ
ੜ·Εͨഎܠ • Vue.js Ͱେن։ൃͰ͖Δ͕͕͋ͬͨ • ίϯϙʔωϯτ͕େ͖͘ͳΔͱίʔυ͕ಡ Έʹ͘͘ͳΔ • ίʔυ࠶ར༻ͷύλʔϯԽ͠ʹ͍͘ •
TypeScript ʹΑΔܕͷαϙʔτ͕ड͚ʹ͘ ͍
ίϯϙδγϣϯAPIΛ͏ͱ… • ίϯϙʔωϯτ ͷϩδοΫ͕៉ ྷʹͳΓɺ Λղܾ͢Δʂ
ྫ: ΧϯτΞοϓ
ৄࡉ͕ؾʹͳΔํRFCΛ͝ཡ͍ͩ͘͞ʂ • υΩϡϝϯτ https://vue-composition-api-rfc.netlify.com/
Vue.js v2 Ͱ͓ࢼ͠Ͱ͑Δ • vuejs/composition-api https://github.com/vuejs/composition-api
ऴΘΓʹ
• ͖ͨΔ Vue.js 3 ʹ͚ͯ • Vue.js ͷಛͱઃܭࢥ • Vue.js
3 Ͱ௨༻͢Δߏจɾػೳ • Vue.js 3 ͷۄػೳ ίϯϙδγϣϯAPI ࠓͨ͜͠ͱ
• ΦϯϥΠϯ: Vue.js ެࣜυΩϡϝϯτ https://jp.vuejs.org • ॻ੶: Vue.js ೖ (ٕज़ධࣾ)
͞Βʹ Vue.js ೖ͍ͯ͘͠ʹʁ
࠷ޙʹ
ίϛϡχςΟʹࢀՃ͠Α͏ʂ • Vue.jsຊϢʔβʔάϧʔϓӡӦ • Slack https://vuejs-jp-slackin.herokuapp.com • VuejsຊޠެࣜαΠτܦ༝ͰδϣΠϯͰ͖·͢ http://jp.vuejs.org •
Vue.js Meetup (connpass) https://vuejs-meetup.connpass.com
དྷ 2/1 ʹ Vue.js 3 ʹ͍ͭͯ͠·͢ • 2020-02-01 PWA Night
CONFERENCE 2020 https://conf2020.pwanight.jp/
͝ਗ਼ௌ ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ