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edu-components-straddle

v0.0.43

Published

<!-- * @Description: * @Author: 黄永泰 * @Date: 2021-04-12 21:01:25 * @LastEditTime: 2021-04-17 01:32:54 * @LastEditors: 黄永泰 -->

Downloads

37

Readme

@vue/babel-plugin-jsx(Vue3.0)和@vue/babel-preset-jsx(Vue2.x)插槽的写法不同需要做兼容处理(HOC)

vue2.x中子组件获取的实例属性详解

  1. $props: 当前组件接收到的 props 对象。Vue 实例代理了对其 props 对象 property 的访问

  2. $attrs: 除style, class之外未被组件props声明的属性对象

  3. $listeners: 包含了父作用域中的 (不含 .native 修饰器的) v-on 事件监听器。它可以通过 v-on="$listeners" 传入内部组件——在创建更高层次的组件时非常有用。

  4. $slots: 用来访问被插槽分发的内容。每个具名插槽有其相应的 property (例如:v-slot:foo 中的内容将会在 vm.$slots.foo 中被找到)。default property 包括了所有没有被包含在具名插槽中的节点,或 v-slot:default 的内容

  5. $scopedSlots: 用来访问作用域插槽。对于包括 默认 slot 在内的每一个插槽,该对象都包含一个返回相应 VNode 的函数。

vue3.0中子组件获取实力例属性详解

  1. $props: 当前组件接收到的 props 对象。组件实例代理了对其 props 对象 property 的访问。

  2. $slots: { [name: string]: (...args: any[]) => Array | undefined } 用来以编程方式访问通过插槽分发的内容。每个具名插槽都有其相应的 property (例如:v-slot:foo 中的内容将会在 this.$slots.foo() 中被找到)。default property 包括了所有没有被包含在具名插槽中的节点,或 v-slot:default 的内容。

  3. $attrs: 包含了父作用域中不作为组件 props 或自定义事件的 attribute 绑定和事件。当一个组件没有声明任何 prop 时,这里会包含所有父作用域的绑定,并且可以通过 v-bind="$attrs" 传入内部组件——这在创建高阶的组件时会非常有用。

迁移指南 – $attrs 包括 class 和 style 迁移指南 – 渲染函数 API 的更改 迁移指南 – 新增 Emits 选项 迁移指南 – 移除 .native 修饰符