what does javascript pop do code example

Example 1: pop javascript

/*The pop() method removes an element from the end of an array, while shift()
removes an element from the beginning.*/

let greetings = ['whats up?', 'hello', 'see ya!'];

greetings.pop();
// now equals ['whats up?', 'hello']

greetings.shift();
// now equals ['hello']

Example 2: pop javascript

let cats = ['Bob', 'Willy', 'Mini'];

cats.pop(); // ['Bob', 'Willy']