1、图片预加载
- (function($) {
- var cache = [];
-
- $.preLoadImages = function() {
- var args_len = arguments.length;
- for (var i = args_len; i--;) {
- var cacheImage = document.createElement('img');
- cacheImage.src = arguments[i];
- cache.push(cacheImage);
- }
- }
- jQuery.preLoadImages("image1.gif", "/images/2.png");
2、 在新窗口打开链接 (target=”blank”)
- $('a[@rel$='external']').click(function(){
- this.target = "_blank";
- });
-
-
-
-
3、平滑滚动页面到某个锚点
- $(document).ready(function() {
- $("a.topLink").click(function() {
- $("html, body").animate({
- scrollTop: $($(this).attr("href")).offset().top + "px"
- }, {
- duration: 500,
- easing: "swing"
- });
- return false;
- });
- });
4、鼠标滑动时的渐入和渐出
- $(document).ready(function(){
- $(".thumbs img").fadeTo("slow", 0.6);
- $(".thumbs img").hover(function(){
- $(this).fadeTo("slow", 1.0);
- },function(){
- $(this).fadeTo("slow", 0.6);
- });
- });
5、制作等高的列
- var max_height = 0;
- $("div.col").each(function(){
- if ($(this).height() > max_height) { max_height = $(this).height(); }
- });
- $("div.col").height(max_height);
6、在一些老的浏览器上启用 HTML5 的支持
- (function(){
- if(!0)
- return;
- var e = "abbr,article,aside,audio,bb,canvas,datagrid,datalist,details,dialog,eventsource,figure,footer,header,hgroup,mark,menu,meter,nav,output,progress,section,time,video".split(','),i=e.length;while(i--){document.createElement(e[i])}
- })()
-
-
- <!--[if lt IE 9]>
- <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
- <![endif]-->
7、测试浏览器是否支持某些 CSS3 属性
- var supports = (function() {
- var div = document.createElement('div'),
- vendors = 'Khtml Ms O Moz Webkit'.split(' '),
- len = vendors.length;
-
- return function(prop) {
- if ( prop in div.style ) return true;
-
- prop = prop.replace(/^[a-z]/, function(val) {
- return val.toUpperCase();
- });
-
- while(len--) {
- if ( vendors[len] + prop in div.style ) {
-
-
- return true;
- }
- }
- return false;
- };
- })();
-
- if ( supports('textShadow') ) {
- document.documentElement.className += ' textShadow';
8、获取 URL 中传递的参数
- $.urlParam = function(name){
- var results = new RegExp('[\\?&]' + name + '=([^]*)').exec(window.location.href);
- if (!results) { return 0; }
- return results[1] || 0;
- }
9、禁用表单的回车键提交
- $("#form").keypress(function(e) {
- if (e.which == 13) {
- return false;
- }
- });
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9个最常用的Jquery代码片段