$(document).ready(function () {

//对json进行降序排序函数

var colId="age"

var desc = function(x,y)

{

return (x[colId] < y[colId]) ? 1 : -1

}

//对json进行升序排序函数

var asc = function(x,y)

{

return (x[colId] > y[colId]) ? 1 : -1

}

var arr2 = [

{name:"kitty", age:12},

{name:"sonny", age:9},

{name:"jake", age:13},

{name:"fun", age:24}

];

document.writeln("按age进行升序排序：<br>");

arr2.sort(asc); //升序排序

document.writeln(JSON.stringify(arr2));

document.writeln("<br>按age进行降序排序：<br>");

arr2.sort(desc); //降序排序

document.writeln(JSON.stringify(arr2));

});