一基础知识 React API 一览

Posted 2022-02-03 qiandingwei

1.10 Hooks

参考文章：https://juejin.im/post/5be3ea136fb9a049f9121014

demo：

/**
 * 必须要react和react-dom 16.7以上
 */

import React,  useState, useEffect  from ‘react‘

export default () => 
  const [name, setName] = useState(‘jokcy‘)

  useEffect(() => 
    console.log(‘component update‘)

    return () => 
      console.log(‘unbind‘)
    
  , [])

  return (
    <>
      <p>My Name is: name</p>
      <input type="text" value=name onChange=e => setName(e.target.value) />
    </>
  )

1.11 React.children