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67函数防抖.html 67函数防抖.html +34 -0

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--- a/67函数防抖.html
+++ b/67函数防抖.html
+<!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>
+    <input type="text" name="" value="">
+
+    
+</body>
+<script type="text/javascript">
+    let el = document.querySelector('input')
+    el.addEventListener("input", debounce(A, 500))
+
+    function debounce(fn, delay) {
+        let timer = null
+        return function () {
+            timer && clearTimeout(timer)
+            timer = setTimeout(() => {
+                fn.call(this)
+            }, delay)
+        }
+        console.log(1);
+    }
+
+    function A() {
+        console.log(this.value)
+    }
+</script>
+</html>
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