JavaScript的Hook
<!DOCTYPE html>
<html>
<head>
<title>hook</title>
<meta name="generator" content="editplus" />
<meta name="author" content="" />
<meta name="keywords" content="" />
<meta name="description" content="" />
<meta http-equiv='content-type' content='text/html; charset=utf-8' />
</head>
<body>
<input type='button' value='fuck' onclick='fuck()' />
<input type='button' value='hook' onclick='hook()' id='hookBtn' />
<script type='text/javascript'> 1: 2: 3: function fuck() { 4: alert('hook'); 5: } 6: 7: var isHook = false; 8: var isReset = false; 9: 10: function getEl(id) { 11: return typeof id === 'string' ? document.getElementById(id) : null; 12: } 13: 14: function hook() { 15: 16: if (isHook) { 17: isReset = true; 18: getEl('hookBtn').value = 'hook'; 19: } else { 20: fuck = function(fn) { 21: return function() { 22: if (isReset) { 23: isReset = false; 24: fuck = fn; 25: fn.apply(fn, arguments); 26: return ; 27: } 28: 29: alert('hook it~'); 30: fn.apply(fn, arguments); 31: 32: return fn; 33: } 34: }(fuck); 35: 36: getEl('hookBtn').value = 'unHook'; 37: } 38: 39: isHook = !isHook; 40: } 41: </script>
</body>
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原始发表：2012-05-06 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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