但在模板中直接使用ref时,特别是在v-for循环中,我们需要特别注意,因为直接在模板中为元素设置ref="item.id"并不会自动为每个元素创建一个响应式的引用。 2. 检查代码中动态渲染列表组件时,ref属性的使用方式是否正确 在Vue 3中,如果你想在v-for循环中为每个项目创建一个引用,你应该将ref绑定到一个函数上,该...
首先添加v-model进行双向数据绑定,然后获取h1的dom节点,data中声明name属性值 点击显示表单框,并且获取表单框焦点 {{ name }} data() { return { show: false, name : `学而时习之` } }, methods : { aa () { this.show = true // this.$refs.inp.focus() //这里会报错,因为v-if还没有添加...
示例代码: <template> <component v-for="item in items" :key="item.id" :is="item.component" ref="dynamicComponents" ></component> </template> export default { data() { return { items: [ { id: 1, component: 'ComponentA' }, { id: 2, component: 'ComponentB' }, // ... ]...
<!-- 父组件 --> <!-- 不写参数默认传递btnClick的item --> <cpn @itemclick="cpnClcik"></cpn> <!-- 子组件 --> <template id="cpn"> {{item.name}} </template> const cpn = { template: "#cpn", data() { return { categoties: [{ id: 'aaa', name: '热门推荐' ...
id: string; } export interface ModalRef { pop: () => void; } const Modal = React.forwardRef<ModalRef, ModalProps>((props, ref) => { const [id] = useState(props.id); useImperativeHandle(ref, () => ({ pop() { console.log('popup modal'); ...
prop="domainId" label="域" > <UsDomain v-model="form.domainId"/> </FormItem> <FormItem prop="groupType" label="资源类型" > <Select v-model="form.groupType" :label-in-value="true" @on-change="chgGroupType" > <template v-for="item in neGroups"> ...
The date input field is NOT inside the components template, but within the vueVueJS application (having id="#app"). For data-binding i would like to use the ref attribute to connect the vue.jsVueJS component with my date input field inside the components template (e.g. for initialization...
Your components are being passed props which are stillnull. I would try moving yourDecryptoDataService.getMatch(props.id)promise intoscript setup- that way it gets run during setup rather than after the template is compiled. You'll probably be good to just completely remove theonMountedhook. ...
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log(`Multiselect with id: ${id} emitted new value: `, newVal) } } Of course the `:id` doesn’t have to be the `$index`. It can also be a string, so if your `item.value` is a string you can pass it as the `id` prop. shentao added the help wanted label Aug 3, 2016 ...