js-review/html/防抖.html

36 lines
826 B
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>防抖</title>
</head>
<body>
<div>
<input type="text" id="input">
<p></p>
<input type="button" id="button">
</div>
<script>
function deBounce(fun, delay){
var timer = 0
return function(){
var args = arguments
var context = this
clearTimeout(timer)
timer = setTimeout(function(){
fun.apply(context, args)
},delay)
}
}
</script>
<script type="text/javascript">
let input = document.querySelector("input")
let p = document.querySelector("p")
input.addEventListener("input", deBounce(function(){
p.innerHTML = this.value
}
, 250))
</script>
</body>
</html>