Js解析json

var sysModule=[];        
   var treeJson = <%=(sysModule) %>;
            if (treeJson.length == 0) $("#content").html("");
            $(treeJson).each(function (i, menu) {
                console.log(i);
                console.log(menu);
                var item ="";
                $(menu.children).each(function (j, submenu) {
                   
item += "<li><a href=\""+submenu.Url+"\"><i
class=\""+submenu.icon+"\"></i><span
class=\"hidden-tablet\">"+submenu.Name+"</span></a></li>";

});
                $("#nav_menu").html(item);
            });