Function subsetsWithDup

javascript/0090-subsets-ii.js:7–11

(nums)

 * @return {number[][]}
 */
var subsetsWithDup = function (nums) {
    nums.sort((a, b) => a - b);

    return dfs(nums);
};

const dfs = (nums, index = 0, set = [], subset = []) => {
    subset.push(set.slice());