本文实例总结了经典且实用的jQuery代码开发技巧。分享给大家供大家参考。具体如下：
23. jQuery延时加载功能
Want to delay something?
$(document).ready(function() { window.setTimeout(function() { // do something }, 1000); });
24. 移除单词功能
Want to remove a certain word(s)?
$(document).ready(function() { var el = $('#id'); el.html(el.html().replace(/word/ig, "")); });
25. 验证元素是否存在于jquery对象集合中
Simply test with the .length property if the element exists.
$(document).ready(function() { if ($('#id').length) { // do something } });
26. 使整个DIV可点击
Want to make the complete div clickable?
$(document).ready(function() { $("div").click(function(){ //get the url from href attribute and launch the url window.location=$(this).find("a").attr("href"); return false; }); // how to use <DIV><A href="index.html">home</A></DIV> });
27. ID与Class之间转换
当改变Window大小时，在ID与Class之间切换
$(document).ready(function() { function checkWindowSize() { if ( $(window).width() > 1200 ) { $('body').addClass('large'); } else { $('body').removeClass('large'); } } $(window).resize(checkWindowSize); });
28. 克隆对象
Clone a div or an other element.
$(document).ready(function() { var cloned = $('#id').clone(); // how to use <DIV id=id></DIV> });
29. 使元素居屏幕中间位置
Center an element in the center of your screen.
$(document).ready(function() { jQuery.fn.center = function () { this.css("position","absolute"); this.css("top", ( $(window).height() - this.height() ) / 2+$(window).scrollTop() + "px"); this.css("left", ( $(window).width() - this.width() ) / 2+$(window).scrollLeft() + "px"); return this; } $("#id").center(); });
30. 写自己的选择器
Write your own selectors.
$(document).ready(function() { $.extend($.expr[':'], { moreThen1000px: function(a) { return $(a).width() > 1000; } }); $('.box:moreThen1000px').click(function() { // creating a simple js alert box alert('The element that you have clicked is over 1000 pixels wide'); }); });
31. 统计元素个数
Count an element.
$(document).ready(function() { $("p").size(); });
32. 使用自己的Bullets
Want to use your own bullets instead of using the standard or images bullets?
$(document).ready(function() { $("ul").addClass("Replaced"); $("ul > li").prepend(""); // how to use ul.Replaced { list-style : none; } });
33. 引用Google主机上的Jquery类库
Let Google host the jQuery script for you. This can be done in 2 ways.
//Example 1 <SCRIPT src="http://www.google.com/jsapi"></SCRIPT> <SCRIPT type=text/javascript> google.load("jquery", "1.2.6"); google.setOnLoadCallback(function() { // do something }); </SCRIPT><SCRIPT type=text/javascript src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></SCRIPT> // Example 2:(the best and fastest way) <SCRIPT type=text/javascript src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></SCRIPT>
34. 禁用Jquery（动画）效果
Disable all jQuery effects
$(document).ready(function() { jQuery.fx.off = true; });
35. 与其他Javascript类库冲突解决方案
To avoid conflict other libraries on your website, you can use this jQuery Method, and assign a different variable name instead of the dollar sign.
$(document).ready(function() { var $jq = jQuery.noConflict(); $jq('#id').show(); });
以上就是所有关于jQuery实用技巧的全部内容，希望对大家的学习有所帮助。
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