【发布时间】:2021-01-24 11:15:10
【问题描述】:
给定以下组件
<template>
<div class="text-center">
<v-dialog
v-model="dialog"
width="500"
>
<template v-slot:activator="{ on, attrs }">
<v-btn
color="red lighten-2"
dark
v-bind="attrs"
v-on="on"
>
Click Me
</v-btn>
</template>
<v-card>
<v-card-title class="headline grey lighten-2">
Privacy Policy
</v-card-title>
<v-card-text>
Some text
</v-card-text>
<v-divider></v-divider>
<v-card-actions>
<v-spacer></v-spacer>
<v-btn
color="primary"
text
@click="handleAsyncAction"
>
I accept
</v-btn>
</v-card-actions>
</v-card>
</v-dialog>
</div>
</template>
<script lang="ts">
import Vue from "vue";
import Component from "vue-class-component";
@Component()
export class MyDialog extends Vue {
dialog: booolean = false;
async handleAsyncAction() {
const value = await this.$emit('click'); // you can't really do that
if(value === 'x') {
dialog = false; //<--- then close
} else {
alert('error!')
}
}
}
</script>
被一些家长这样使用:
<template>
<div>
<MyDialog @click="makeSomeAjaxRequest($event)"
</div>
</template>
<script type="ts">
import Vue from "vue";
import Component from "vue-class-component";
import MyDialog from "./MyDialog"
@Component({
components: { MyDialog }
})
export default class ParentComponent extends Vue {
async makeSomeAjaxRequest() {
const data = await fetch('http://example.com');
return data.toString();
}
}
</script>
使用 React,您将能够从父级传递一些函数并将整个事情包装起来,但据我了解,这不是 Vue 的做事方式。
我应该如何让子组件“等待”来回调用?
【问题讨论】:
标签: javascript vue.js promise async-await