/**
 * author: Shawn
 * time  : 2017/8/11 10:49
 * desc  :
 */

let nums = [2, 3, 5, 4, 5, 2, 2];
const s = new Set(nums);


// for (let idx in nums) {
//     console.log(nums[idx]);
// }

s.forEach((val) => console.log(val));
