var arr =
[
{"name":"黄坚鑫", age:"27", sex:"男"},
{"name":"罗锦斌", age:"20", sex:"男"},
{"name":"詹佳妮", age:"20", sex:"女"},
{"name":"林晓荣", age:"24", sex:"男"},
{"name":"陈泽斌", age:"22", sex:"男"}
];
arr.sort(function(a,b) {
return a.age - b.age;
})
console.log(arr);
//看看是不是你想要的