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vue3.0's Introduction

Vue3.0

Vue3.0 study

了解相关信息

  • Vue.js 3.0 "One Piece" 正式版在 2020 年 9 月份发布
  • 2年多开发 100+ 位贡献者, 2600+ 次提交, 600+ 次PR
  • Vue3 支持 vue2 的大多数特性
  • 更好的支持 Typescript

性能提升

  • 打包大小减少 41%
  • 初次渲染快 55% ,更新渲染快 133%
  • 内存减少 54%
  • 使用 Proxy 代替 defineProperty 实现数据响应式
  • 重写了虚拟 DOM 的实现和 Tree-Shaking

新增特性

  • Composition（组合）API

  • setup

    • ref 和 reactive
    • computed 和 watch
    • 新的生命周期函数
    • provide 与 inject
    • ...

  • 新组件

    • fragment - 文档碎片
    • teleport - 瞬移组件的位置
    • Suspense - 异步加载组件的 loading 界面

  • 其他API更新

    • 全局 API 的修改
    • 将原来的全局 API 转移到应用对象
    • 模版语法变化

vue3.0's People

Contributors

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Watchers

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