http://www.catswhocode.com/blog/10-awesome-jquery-snippets
1. [代码]图片预加载
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$.preLoadImages = function () { |
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var args_len = arguments.length; |
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for ( var i = args_len; i--;) { |
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var cacheImage = document.createElement( 'img' ); |
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cacheImage.src = arguments[i]; |
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cache.push(cacheImage); |
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jQuery.preLoadImages( "image1.gif" , "/path/to/image2.png" ); |
2. [代码]在新窗口打开链接 (target=”blank”)
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$( 'a[@rel$=' external ']' ).click( function (){ |
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this .target = "_blank" ; |
3. [代码]当支持 JavaScript 时为 body 增加 class
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$( 'body' ).addClass( 'hasJS' ); |
4. [代码]平滑滚动页面到某个锚点
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$(document).ready( function () { |
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$( "a.topLink" ).click( function () { |
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$( "html, body" ).animate({ |
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scrollTop: $($( this ).attr( "href" )).offset().top + "px" |
5. [代码]鼠标滑动时的渐入和渐出
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$(document).ready( function (){ |
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$( ".thumbs img" ).fadeTo( "slow" , 0.6); |
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$( ".thumbs img" ).hover( function (){ |
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$( this ).fadeTo( "slow" , 1.0); |
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$( this ).fadeTo( "slow" , 0.6); |
6. [代码]制作等高的列
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$( "div.col" ).each( function (){ |
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if ($( this ).height() > max_height) { max_height = $( this ).height(); } |
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$( "div.col" ).height(max_height); |
7. [代码]在一些老的浏览器上启用 HTML5 的支持
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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])} |
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<script src= "http://html5shim.googlecode.com/svn/trunk/html5.js" ></script> |
8. [代码]测试浏览器是否支持某些 CSS3 属性
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var supports = ( function () { |
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var div = document.createElement( 'div' ), |
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vendors = 'Khtml Ms O Moz Webkit' .split( ' ' ), |
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return function (prop) { |
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if ( prop in div.style ) return true ; |
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prop = prop.replace(/^[a-z]/, function (val) { |
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return val.toUpperCase(); |
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if ( vendors[len] + prop in div.style ) { |
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if ( supports( 'textShadow' ) ) { |
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document.documentElement.className += ' textShadow' ; |
9. [代码]获取 URL 中传递的参数
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$.urlParam = function (name){ |
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var results = new RegExp( '[\\?&]' + name + '=([^&#]*)' ).exec(window.location.href); |
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if (!results) { return 0; } |
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return results[1] || 0; |
10. [代码]禁用表单的回车键提交
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$( "#form" ).keypress( function (e) { |