http://www.catswhocode.com/blog/10-awesome-jquery-snippets
1 (function($) { 2 var cache = []; 3 // Arguments are image paths relative to the current page. 4 $.preLoadImages = function() { 5 var args_len = arguments.length; 6 for (var i = args_len; i--;) { 7 var cacheImage = document.createElement('img'); 8 cacheImage.src = arguments[i]; 9 cache.push(cacheImage); 10 } 11 } 12 13 jQuery.preLoadImages("image1.gif", "/path/to/image2.png");
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 */
/* 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 */ $('body').addClass('hasJS');
$(document).ready(function() { $("a.topLink").click(function() { $("html, body").animate({ scrollTop: $($(this).attr("href")).offset().top + "px" }, { duration: 500, easing: "swing" }); return false; }); });
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 });
1 var 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);
1 (function(){ 2 if(!/*@cc_on!@*/0) 3 return; 4 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])} 5 })() 6 7 //然后在head中引入该js 8 <!--[if lt IE 9]> 9 <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script> 10 <![endif]-->
1 var supports = (function() { 2 var div = document.createElement('div'), 3 vendors = 'Khtml Ms O Moz Webkit'.split(' '), 4 len = vendors.length; 5 6 return function(prop) { 7 if ( prop in div.style ) return true; 8 9 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 24 if ( supports('textShadow') ) { 25 document.documentElement.className += ' textShadow';
$.urlParam = function(name){ var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(window.location.href); if (!results) { return 0; } return results[1] || 0; }
1 $("#form").keypress(function(e) { 2 if (e.which == 13) { 3 return false; 4 } 5 });
转自:开源中国 http://www.oschina.net/code/snippet_12_7271