我想知道如何使用props和检索将对象传递给子组件.我理解如何将其作为属性,但如何传递对象并从子组件中检索对象?当我从子组件使用this.props时,我得到未定义或错误消息. 父组件 tem
父组件
<template> <div> <my-component :v-bind="props"></my-component> </div> </template> <script> import ChildComponent from "ChildComponent.vue"; export default { name: 'ParentComponent', mounted() { }, props: { firstname: 'UserFirstName', lastname: 'UserLastName' foo:'bar' }, components: { ChildComponent }, methods: { } } </script> <style scoped> </style>
子组件
<script> <template> <div> </div> </template> export default { name: 'ChildComponent', mounted() { console.log(this.props) } } </script>就那么简单:
父组件:
<template> <div> <my-component :propObj="anObject"></my-component> </div> </template> <script> import ChildComponent from "ChildComponent.vue"; export default { name: 'ParentComponent', mounted() { }, props: { anObject: Object }, components: { ChildComponent }, } </script> <style scoped> </style>
子组件:
export default { props: { // type, required and default are optional, you can reduce it to 'options: Object' propObj: { type: Object, required: false, default: {"test": "wow"}}, } }
这应该工作!
看看道具文档也:
https://vuejs.org/v2/guide/components.html#Props
如果您想要将孩子的数据发送到父级,就像评论中已经指出的那样,您必须使用事件,或者查看2.3中提供的“同步”功能
https://vuejs.org/v2/guide/components.html#sync-Modifier