js中如何实现数组去重--面试题

Posted 2022-09-08 ommph

 1 function dupRemove(arr)
 2     var tmp = [];
 3     for(var i=0;i<arr.length;i++)
 4         for(var j=i+1;j<arr.length;j++)
 5             if(arr[i] === arr[j])
 6                 j = ++i;
 7             
 8         
 9         tmp.push(arr[i]);
10     
11     return tmp;
12 
13 
14 var list = [10,20,50,60,10,20,‘a‘,‘v‘,‘a‘];
15 document.write(dupRemove(list)); //50,60,10,20,v,a