數組去重排序簡單方法

1. 去重排序(從小到大排序)

let arr=[1,2,3,3,3,3,4,4,5,5,9,9];
function superSort(){
  return [...new Set(arr)].sort(function(a,b){
     return a-b;
  })
}
console.log(superSort(arr));
           

1. 去重排序(從大到小排序)

let arr=[1,2,3,3,3,3,4,4,5,5,9,9];
function superSort(){
  return [...new Set(arr)].sort(function(a,b){
     return b-a;
  })
}
console.log(superSort(arr));