1 //方法一
2 var arr = [1,23,1,1,1,3,23,5,6,7,9,9,8,5];
3 function removeDuplicatedItem(arr) {
4 for(var i = 0; i < arr.length-1; i++){
5
for(var j = i+1; j < arr.length; j++){
6
if(arr[i]==arr[j]){
7
8
arr.splice(j,1);//console.log(arr[j]);
9
j--;
10
}
11
}
12 }
13 return arr;
14 }
15
16 arr2 = removeDuplicatedItem(arr);
17 console.log(arr);
18 console.log(arr2);