<!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>节流</title>
</head>
<body>
<input type="text" />
<input type="submit" id="input" />
<script type="text/javascript">
let btn = document.getElementById('input')
btn.addEventListener('click',throttle(submit,2000),false)
function submit(params){
console.log(params)
console.log(this)
}
function throttle(fn,delay){
let begin = 0 ;
return function(e){
let cur = new Date().getTime();
console.log(cur-begin)
if(cur - begin > delay){
fn.call(this,arguments)
begin = cur;
}
}
}
</script>
</body>
</html>
效果图