There are three ways to define a component in Vue.js: directly define it in the <script> tag and export the component object, create it using the component factory function and defineComponent auxiliary function, and use a class to define the component and inherit Vue.extend to create it. . </script>
How to define components in Vue.js
1. Direct definition
-
In the
<script></script>
tag, useexport default {}
to export the component object:<script> export default { // 组件内容 } </script>
-
In the
<template></template>
tag, define the component layout:<template> <div>组件内容</div> </template>
2. Use the component factory function
-
Create a factory function and use
defineComponent
Auxiliary function:import { defineComponent } from 'vue' export default defineComponent({ // 组件内容 })
- The component layout is the same as the direct definition above.
3. Use classes to define components
-
Inheritance
Vue.extend
Create a class:import Vue from 'vue' export default class MyComponent extends Vue { // 组件内容 }
-
Registered component:
// 在 Vue 实例中 this.$options.components.MyComponent = MyComponent
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