我试图在“Favorites.vue”文件的Favorites组件中共享存储在变量“favorite_count”中的数据。我希望与“App.vue”文件中的App组件共享该数据,但是我做不到。如果我在Favorites组件中更改了“favorite_count”的值,我希望它也能在App组件中更改。我在网上做了一些研究,但还没有成功。有什么想法吗?
“Favorites.vue”文件:
“Favorites.vue”文件:
<template>
<div class="row m-5">
<h3 class="col-8">Your Favorites</h3>
<div class="col-4">
<p class="pull-right m-1">Picks
<span >{{ favorite_count }}</span> / 5</p>
</div>
<hr>
</div>
</template>
<script>
export default {
name: 'favorites',
data() {
return {
favorite_count: 5,
}
},
methods: {
changeFavoriteCount() {
this.favorite_count = this.favorite_count + 2;
},
emitToParent (event) {
this.$emit('childToParent', this.favorite_count)
}
}
}
</script>
App.vue
文件
<template>
<div class="navbar navbar-expand-md navbar-dark bg-primary">
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav">
<li class="nav-item">
<router-link to="/favorites" class="btn btn-info">
Favorites ( {{ favorite_count }} )
</router-link>
</li>
</ul>
</div>
</div>
</template>
<script>
import Favorites from './components/Favorites.vue'
export default {
name: 'App',
components: {
Favorites
},
data () {
return {
favorite_count: 0,
}
}
}
</script>