[代码] 图片预加载
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01(function($) {
02 var cache = [];
03 // Arguments are image paths relative to the current page.
04 $.preLoadImages = function() {
05 var args_len = arguments.length;
06 for (var i = args_len; i--;) {
07 var cacheImage = document.createElement('img');
08 cacheImage.src = arguments[i];
09 cache.push(cacheImage);
10 }
11 }
12
13jQuery.preLoadImages("image1.gif", "/path/to/image2.png");
[代码] 在新窗口打开链接 (target=”blank”)
1$('a[@rel$='external']').click(function(){
2 this.target = "_blank";
3});
4
5/*
6 Usage:
7 <a href="http://www.catswhocode.com" rel="external">catswhocode.com</a>
8*/
[代码] 当支持 JavaScript 时为 body 增加 class
1/* 该代码只有1行，但是最简单的用来检测浏览器是否支持 JavaScript 的方法，如果支持 JavaScript 就在 body 元素增加一个 hasJS 的 class */
2$('body').addClass('hasJS');
[代码] 平滑滚动页面到某个锚点
01$(document).ready(function() {
02 $("a.topLink").click(function() {
03 $("html, body").animate({
04 scrollTop: $($(this).attr("href")).offset().top + "px"
05 }, {
06 duration: 500,
07 easing: "swing"
08 });
09 return false;
10 });
11});
[代码] 鼠标滑动时的渐入和渐出
1$(document).ready(function(){
2 $(".thumbs img").fadeTo("slow", 0.6); // This sets the opacity of the thumbs to fade down to 60% when the page loads
3
4 $(".thumbs img").hover(function(){
5 $(this).fadeTo("slow", 1.0); // This should set the opacity to 100% on hover
6 },function(){
7 $(this).fadeTo("slow", 0.6); // This should set the opacity back to 60% on mouseout
8 });
9});
[代码] 制作等高的列
1var max_height = 0;
2$("div.col").each(function(){
3 if ($(this).height() > max_height) { max_height = $(this).height(); }
4});
5$("div.col").height(max_height);
[代码] 在一些老的浏览器上启用 HTML5 的支持
01(function(){
02 if(!/*@cc_on!@*/0)
03 return;
04 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])}
05})()
06
07//然后在head中引入该js
08<!--[if lt IE 9]>
09<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
10<![endif]-->
[代码] 测试浏览器是否支持某些 CSS3 属性
01var supports = (function() {
02 var div = document.createElement('div'),
03 vendors = 'Khtml Ms O Moz Webkit'.split(' '),
04 len = vendors.length;
05
06 return function(prop) {
07 if ( prop in div.style ) return true;
08
09 prop = prop.replace(/^[a-z]/, function(val) {
10 return val.toUpperCase();
11 });
12
13 while(len--) {
14 if ( vendors[len] + prop in div.style ) {
15 // browser supports box-shadow. Do what you need.
16 // Or use a bang (!) to test if the browser doesn't.
17 return true;
18 }
19 }
20 return false;
21 };
22})();
23
24if ( supports('textShadow') ) {
25 document.documentElement.className += ' textShadow';
[代码] 获取 URL 中传递的参数
1$.urlParam = function(name){
2 var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(window.location.href);
3 if (!results) { return 0; }
4 return results[1] || 0;
5}
[代码] 禁用表单的回车键提交
1$("#form").keypress(function(e) {
2 if (e.which == 13) {
3 return false;
4 }
5});
转载于:https://www.cnblogs.com/sfmjp/articles/2940431.html
相关资源：jquery插件使用方法大全
