建议直接复制
<!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>防抖</title>
</head>
<body>
<input type="text">
<script>
const input = document.querySelector('input')
input.oninput = debounce(function () {
console.log(this.value);
}, 500)
function debounce(fn, delay) {
let timer;
return function () {
if (timer) {
clearTimeout(timer)
}
timer = setTimeout(() => {
// console.log(this);
fn.call(this)
}, delay)
}
}
</script>
</body>
</html>