Switching two arrays around

switch-arrays.js

// If you have a function working on two arrays:
const compareArrays = (nums1, nums2) => {
  ...
}
  
// And you need the larger or smaller array to be in a certain position, 
  // you can do:
const compareArrays = (nums1, nums2) => {
  // invoke function making smaller array first in the order:
  if (nums1.length > nums2.length) return compareArrays(nums2, nums1);
}