昨天在遍历json串的时候碰到了如下图所示的问题，除ie8以下版本的浏览器运行都是正常的，
部分代码如下:
1 var Workmodel=function(){
2 model_json=[
3 {"name":"工作台","state":"工作台说明","img_src":"res/images/icon1.png","_background":"rgb(21, 183, 211)","_url":"#"},
4 {"name":"工作台","state":"工作台说明","img_src":"res/images/icon2.png","_background":"rgb(235, 73, 75)","_url":"#"},
5 {"name":"工作台","state":"工作台说明","img_src":"res/images/icon3.png","_background":"rgb(230, 119, 27)","_url":"#"},
6 {"name":"工作台","state":"工作台说明","img_src":"res/images/icon4.png","_background":"rgb(50, 50, 50)","_url":"#"},
7 ];
8 this.execute=function(){
9 this.pElement=$("#right-top .content");
10 this.result="";
11 $.each(model_json,function(a,b){
12 result+='<div class="mod" style="background:'+b._background+'"><a href='+b._url+'><div class="mod-left"><div class="name">'+b.name+'</div><div class="text">'+b.state+'</div></div><div class="mod-icon"><img src='+b.img_src+' alt=""></div></a></div></div>';
13 });
14 this.pElement.html(result);
15 };
16 this.execute();
17 };
然后我对json串进行了长度测试：
chrome环境中：
ie8环境中：
所以问题的根源找到了，为何会导致这样的结果我想罪魁祸首应该是json串中最后一个逗号，至于原因我想应该与浏览器内核与js执行引擎有关。
转自：http://www.cnblogs.com/tranren/p/4346367.html