intersection-of-two-arrays-ii.js

/**
 * @param {number[]} nums1
 * @param {number[]} nums2
 * @return {number[]}
 */

var intersect = function(nums1, nums2) {

  let result = [];
    
  for (let i = 0; i < nums1.length; i++) {
    if (nums2.includes(nums1[i])) {
      result.push(nums1[i]);
      nums2.splice(nums2.indexOf(nums1[i]), 1);
    }
  }
    
  return result;
};