search

chdyiboke / weekly

issue and share weekly
5 stars 1 forks source link

Hooks实现 componentWillUnmount #58

Open chdyiboke opened 3 years ago

chdyiboke commented 3 years ago 
useEffect(()=>{
    console.log('页面的--来了---');
    return ()=>{
        console.log('页面的--走了---');
    }
},[])
chdyiboke commented 3 years ago

使用 useEffect的第二个参数和return