数组去重排序

Posted 2020-10-11 静静的fire

 1 var c = [1,8,6,4,88,22,99,4,6,86,5,58,89,5];
 2 c.sort(function (a,b) {
 3     return a - b;
 4 });
 5 c = unique(c);
 6 function unique(arr){
 7 　　var res = [];
 8     for(var i = 0;i < arr.length;i++){
 9         if(res.indexOf(arr[i]) == -1) 
10             res.push(arr[i])
11     } 
12     return res;
13 };

 简化版

 1 var c = [1,8,6,4,88,22,99,4,6,86,5,58,89,5];
 2 c = unique(c);
 3 c.sort(function (a,b) {
 4     return a - b;
 5 });
 6 function unique(arr){
 7 　　var res = [];
 8     for(var i = 0;i < arr.length;i++)
 9     res.indexOf(arr[i]) == -1 &&  res.push(arr[i]);
10     return res;
11 };