js数组对象排序

普通排序

var arr = ["a", "b", "A", "B"];
arr.sort();
console.log(arr);//["A", "B", "a", "b"]

数组对象

利用数组api ——> sort来进行排序

var person = [{name:"Rom",age:12},{name:"Bob",age:22},{name:"Ma",age:5},{name:"Tony",age:25}]
 
person.sort((a,b)=>{ return a.age-b.age})//升序
 
person.sort((a,b)=>{ return b.age-a.age})//降序