leetcode

0 /**

1 * @param {number} n

2 * @return {Function} counter

3 */

4

5 var createCounter = function(n) {

6 return function() {

7 return n++;

8 };

9 };

10

11 var createCounter = function(n) {

12 return () => n++;

13 };

14

15 var createCounter = (n) => () => n++;