javascript中sort排序实例详解

var arr = [5,32,28,66,2,15,3];  arr.sort(function(a1,a2){    return a1-a2; //a2-a1 输入倒序  });  console.log(arr);  console.log(arr.reverse()); //reverse颠倒数组中元素的顺序 var arr2 = ['hezihao','chensan','xiaomin','lishi']  arr2.sort();  console.log(arr2); var arr3 = ['6','8','0','7']  arr3.sort();  console.log(arr3);