Merge pull request neetcode-gh#483 from hnlCaseSensitive/patch-2

78. Subsets

Author: Ahmad-A0

javascript/78. Subsets.js

@@ -0,0 +1,19 @@
+/**
+ * @param {number[]} nums
+ * @return {number[][]}
+ */
+var subsets = function(nums) {
+    let ans = new Array(), curr = [];
+    ans.push([]);
+    function backtracking(i){
+        if(i >= nums.length)return;
+        for(let j = i; j < nums.length; j++){
+            curr.push(nums[j]);
+            ans.push([...curr]);
+            backtracking(j + 1);
+            curr.pop();
+        }
+    }
+    backtracking(0);
+    return ans
+};