<!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>
<h1>防抖</h1>
<input type="text" id="ipt" />
</body>
<script>
const inputDom = document.getElementById('ipt')
function debounce(fn) {
let timer = null
return function (val) {
if (timer) {
clearTimeout(timer)
}
timer = setTimeout(() => {
fn(val)
}, 300)
}
}
inputDom.addEventListener(
'input',
debounce(e => {
console.log('发送网络请求', e.target.value)
})
)
</script>
</html>