zhangenming

Bug: d1 will cause domdiff, but d2 will not.

2

React version: ## Steps To Reproduce ```js const dataList = [...Array(50000)].map(() => 1) const d1 = {dataList} const d2 = {dataList} function Apps() {     const [count, setCount] = useState(0)     return...

It's not triggered handleBlur unless you tap it manually (click 3 times)(It should be able to reproduce, test on chrome/firefox) as shown in the figure This results in multiple item...

mapState(["key1", {key2 :'key3'})

1

`.map(key => ({ key, val: key }))` `.reduce((acc, cur)=> {acc.push({ key: cur, val: cur}); return acc}, [])` I'm not aware of the performance issues Is there a relatively big impact(reduce...

can you show everything before and after? such as github or git diff?

1

Very good project, thanks you... now, will only highlight the diff when switchover can you show everything before and after? such as github or git diff?

new.target区分构造函数是否由 new 调用.

1

https://www.zhihu.com/question/24753637

like shouldComponentUpdate(**nextProps, nextState**) shouldComponentUpdate(**nextProps, nextState**)

https://github.com/KieSun/react-interpretation 这里面的是react本身源码 我用create react app新建一个项目后 怎么把最新的react版本改到和你项目一样的版本呀 目前默认的是16.13.1 怎么改到和你一样的16.8.6 搞了一会没搞成功 - -... 改了新项目最外层的package 貌似并不行 查文档也没找到响应方法 谢谢

根据mdn catch是要返回promise的 这么严重的bug测试为什么不报错呢? 难道这个不是BUG吗? 谢谢... 下面这个测试用例通不过 ```js new Promise((resolve, reject) => { throw new Error('Something failed'); }) .catch(() => { console.error('Do that'); }) .then(()=>console.log(1)) ```