Sort an Array of Objects in JS

sortArrayOfObjects.js

const users = [
  {
    firstName: 'Sarah',
    lastName: 'Zulu',
  },
  {
    firstName: 'Josh',
    lastName: 'Able',
  },
  
];

// Sort edits the array, if you don't want that you can clone it using slice
users.sort((a, b) => {
    if(a.lastName < b.lastName) { return -1; }
    if(a.lastName > b.lastName) { return 1; }
    return 0;
});