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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta http-equiv="X-UA-Compatible" content="IE=edge">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- </head>
- <body>
- <script>
- const App = ()=>{
- const parent = useRef<HTMLDivElement>(null)
- const child = useRef<HTMLDivElement>(null)
- }
- useEffect(()=>{
- parent.current.addEventListener('click',(e)=>{
- console.log('dom parent')
- })
- child.current.addEventListener('click',(e)=>{
- console.log('dom child')
- })
- document.addEventListener('click',(e)=>{
- console.log('document')
- })
- },[])
- const onParentClick = ()=>{
- console.log('react parent')
- }
- const onChildClick = ()=>{
- console.log('react child')
- }
- return{
- <div ref={parent} onClick = {onParentClick}>
- <div ref= {child} onClick = {onChildClick}>
- </div>
- }
- </script>
- </body>
- </html>
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