var ary = [8,9,10,3],
compare = function(a,b){
return b.age-a.age;
},
g = [
{
name:"jim",
age:29
},
{
name:"tom",
age:15
},
{
name:"mary",
age:20
}
];
g.sort(compare);
console.log(g);
原文：http://www.cnblogs.com/xupeiyu/p/4337551.html