sorting.js

//
// A user has purchased products from Dollar Shave Club, 
// noted below in the `purchased` array. When these products 
// came out of our database, they were unsorted. 
//
// Write the method below, `sortProducts`, to obtain a sorted 
// array of the items purchased.
//

const sortedReference = [
  'ITEM-1',
  'ITEM-2',
  'ITEM-3',
  'ITEM-4',
  'ITEM-5',
  'ITEM-6',
  'ITEM-7',
  'ITEM-8',
  'ITEM-9',
  'ITEM-10',
];

const purchased = [
  'ITEM-3',
  'ITEM-1',
  'ITEM-5',
  'ITEM-10',
  'ITEM-8',
];