• 10 个很棒的 jQuery 代码片段【转】


    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

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  • 原文地址:https://www.cnblogs.com/lollipop/p/2993273.html
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