LeetCode: Kth Smallest Element in a Sorted Matrix Solution

Approach

Steps:

• Flatten the 2D-array in to 1D-array
• Sort the array
• Get the
  k
  -th element

Implementation

1/**
2 * @param {number[][]} matrix
3 * @param {number} k
4 * @return {number}
5 */
6var kthSmallest = function (matrix, k) {
7  return matrix.flat().sort((a, b) => a - b)[k - 1]
8}