摘要：
1 function loadScript(url, callback) { 2 var script = document.createElement("script"); 3 script.type = "text/javascript"; 4 5 if (script.readyState) { //IE 6 script.onreadystatechange = function() { 7 if (script.readyState == "loaded" || script.readyState == "comp 阅读全文
摘要：
1 jQuery.preloadImages = function() {2 for(var i = 0; i < arguments.length; i++) {3 $("<img />").attr('src', arguments[i]);4 }5 };6 //用法7 $.preloadImages('image1.gif', '/path/to/image2.png', 'some/image3.jpg'); 阅读全文
摘要：
1 (function(){2 console.log(arguments instanceof Array); // false 3 var argsArray = Array.prototype.slice.call(arguments);4 console.log(argsArray instanceof Array); // true 5 }());getElementsByTagName返回的NodeList也可以转化成数组1 Array.prototype.slice.call(nodes) 阅读全文