Another array method, .pop(), removes the last item of an array.

const newItemTracker = ['item 0', 'item 1', 'item 2'];

const removed = newItemTracker.pop();

console.log(newItemTracker); 
// Output: [ 'item 0', 'item 1' ]
console.log(removed);
// Output: item 2

• In the example above, calling .pop() on the newItemTracker array removed item 2 from the end.
• .pop() does not take any arguments, it simply removes the last element of newItemTracker.
• .pop() returns the value of the last element. In the example, we store the returned value in a variable removed to be used for later.
• .pop() is a method that mutates the initial array.

When you need to mutate an array by removing the last element, use .pop().