Vue Provide/Inject について
使い方があっているかわからないけど、ReactのContextみたいに使えるのかな
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Vue html</title>
</head>
<body>
<div id="app">
{{ count }}
<button @click="increment">+</button>
<child :message="count"></child>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<script>
const Child = {
template: '<div>{{provide.count}}<button @click="provide.incrementFromChild">+ from child</button></div>',
props: ['message'],
inject: ['provide']
}
const app = new Vue({
el: '#app',
components: {Child},
provide(){
const provide = {
incrementFromChild: () => this.count++
}
Object.defineProperty(provide, 'count', {
get: () => this.count
})
return {provide}
},
data(){
return {
count: 1
}
},
methods: {
increment(){
this.count++
}
}
})
</script>
</body>
</html>
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