Number of Pairs of Strings With Concatenation Equal to Target LeetCode solution in JavaScript

1
/**
2
 * @param {string[]} nums
3
 * @param {string} target
4
 * @return {number}
5
 */
6
var numOfPairs = function (nums, target) {
7
  var count = 0;
8
  var x = 0;
9
  while (x < nums.length) {
10
    for (let y = 0; y < nums.length; y++) {
11
      if (nums[x] + nums[y] == target) {
12
        count += 1;
13
        if (x == y) {
14
          count -= 1;
15
        }
16
      }
17
    }
18
    x++;
19
  }
20
  return count;
21
};