Remove Elements from an Array

You can also remove elements from an array.

pop removes the last element. It returns the element that was removed.

let pets = ["dog", "cat", "fish"];
let lastElement = pets.pop();
lastElement; // "fish"
pets; // ["dog", "cat"]

shift removes the first element. Like pop, it returns the element that was removed.

let firstElement = pets.shift();
lastElement; // "dog"
pets; // ["cat"]

Tests

Write a function called removeLast. It will take a single argument, arr, an array. It should remove the last element and return the element it removed.