JavaScript数组值去重，但是返回的类型和原类型不一样了 帮帮忙

Question

<script  type="text/javascript" charset="utf-8" async defer> var arr = [2,1,2,10,2,3,4,1,85,321,3,4,65,10,24]; function uniq(newarr){     function toObject(arr) {         var obj = { };          for(var i=0 ;i<arr.length ;i++){             obj[ arr[ i ] ]=true;             }         return obj ;     }     function keys(obj){         var arr = [ ] ;             for(var attr in obj){                 if(obj.hasOwnProperty(attr)){                     arr.push(parseInt(attr));                 }             }         return arr;     } return keys(toObject(newarr)); } console.log(uniq(arr));

Answer 1

没发现你那个哪里不一样呀，你可以试一下其他的方法，比喻先排序，然后把相邻相同的都去掉

<script>
    var arr = [2,1,2,10,2,3,4,1,85,321,3,4,65,10,24];

    var newArray = arr.sort(function(a,b){return a-b;});
    var arr2=[];
    arr2.push(newArray[0]);
    for(var i=0;i<newArray.length-1;i++){
        if(newArray[i] !== newArray[i+1]){
            arr2.push(newArray[i+1])
        }
    }
    console.log(arr2);
</script>