props 设置必传
时间: 2023-10-13 14:00:21 浏览: 19
在Vue.js 2中,可以通过在组件的props选项中设置required: true来将一个prop声明为必传属性。这样,当使用该组件时,如果没有传入这个prop的值,Vue会在控制台中发出警告。例如:
```javascript
Vue.component('my-component', {
props: {
myProp: {
type: String,
required: true
}
}
});
```
在上面的例子中,myProp被声明为必传属性,如果使用这个组件时没有传入myProp的值,Vue会发出警告。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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