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Vue/Nuxt小ネタ n連発 2019/09/19 Yumemi.vue #1 גࣜձࣾΏΊΈ தౡ ⁜
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自己紹介 • גࣜձࣾΏΊΈ • ϦʔυϑϩϯτΤϯυΤϯδχΞ • ΏΊΈྺ7ϲ݄ • Vue͍͍ͧ
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is Կʁ
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ゆめみ is … • डୗձࣾʢ2000ۀʣ • جຊৗற͠ͳ͍ • ϞόΠϧʹڧ͍ • αʔόʔͱΞϓϦͷνʔϜ͕ओྗ • ϑϩϯτΤϯυ͜Ε͔Β
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ゆめみの取引先
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ゆめみの変な制度 • શһCEO੍ • ษڧ͠์੍ • ༗څऔΓ์੍ • ࡊࢧڅ੍ ͳͲͳͲ
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ৄ࠙͘͠ձͰʂ
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Vue/Nuxt小ネタ n連発
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動的コンポーネント差し替え • Λͬͯ ݺͼग़͢ίϯϙʔωϯτΛಈతʹΓସ͑ΒΕΔ • ΧςΰϦͳͲʹΑͬͯίϯϙʔωϯτΛग़͚͠Δ Έ͍ͨͳέʔεʹϑΟοτ • https://jp.vuejs.org/v2/guide/components-dynamic- async.html
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v-bind="object" • ී௨props down ͢Δ࣌ v-bind:prop="Hoge" ͱ͢Δ ʢ͘͠γϣʔτϋϯυͰ :prop=“Hoge”ʣ • ίϯϙʔωϯτʹόΠϯυ͢Δม͕૿͖͑ͯͨͱ͖ v-bind="object" ͱ͢Δͱ·ͱΊͯͤΔ ʢkeyଐੑͱͯ͠શͯ props down ͞ΕΔʣ • https://jp.vuejs.org/v2/guide/components-props.html#ΦϒδΣΫτͷϓϩύ ςΟͷड͚͠
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data: { imgObject: { src: "sample.jpg" alt: "αϯϓϧ" } } "
ࣗͷ࡞ͬͨίϯϙʔωϯτͰಉ༷ɻจࣈྻҎ֎ͤΔ
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filters • υΩϡϝϯτʹͬͯΔ͚ͲΕ͕ͪ {{ hoge | myFilter }} Έ͍ͨͳܗͰؔΛద༻Ͱ͖Δ • ϧʔϓͷͷՃʹಛʹศར • https://jp.vuejs.org/v2/guide/filters.html
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Vue.nextTick() はawaitできる • nextTick() ίʔϧόοΫͰૢ࡞͢Δαϯϓϧ͕͍ͬͯΔ • Α͘ΈΔͱPromiseΛฦ͢ͷͰawait Ͱ͖Δ Vue.nextTick(() => { someLazyLogic(); }); await Vue.nextTick(); someLazyLogic();
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nuxt-link と @click • @click ͩͱΠϕϯτ͕ൃՐ͠ͳ͍ • @click.native म০ࢠΛ͚ͭΔͱൃՐ͢ΔΑ͏ʹͳΔ ʢVue-routerͷ ಉ༷ʣ
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normal native
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クエリの変化とライフサイクル • ϖʔδίϯϙʔωϯτมԽͤͣ ΫΤϦΛมԽͤ͞ΔͱԿͷϥΠϑαΠΫϧൃՐ͠ͳ͍ • nuxtwatchQuery: boolean|Array ͱ͍͏ίϯϙʔωϯτΦϓγϣϯ͕ ͋Δ • asyncData, fetch͕ϑοΫ͞ΕΔΑ͏ʹͳΔ • https://ja.nuxtjs.org/api/pages-watchquery/
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export default{ watchQuery: ["l"], fetch(){ console.log("load hook") }, methods:{ link2(){ this.$router.push(“/?q=link2") }, link3(){ this.$router.push("/?l=link3") } } }
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ブラウザバックすると画面が真っ白 @iOS Safari • ΠϯεϖΫλͰݟΔݶΓDOMߏ͞Ε͍ͯΔ • Կނ͔ը໘͕ਅͬനʹͳΔ͕ɺεΫϩʔϧ͢Δͱදࣔ͞ΕΔ • ݪҼෆ໌͕ͩϫʔΫΞϥϯυͱͯ͠ scrollTo(0, 1) Ͱ1pxεΫϩʔϧ͢Δͱ͍͍ײ͡ʹͳΔ • https://github.com/vuejs/vue/issues/5533
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Ҏ্ʂ
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Enjoy Yumemi.vue