push() vs pop() method in Javascript

push()

- Appends one or multiple elements to the end of an array.

pop()

- Eliminates the final element from an array, returning it.

Example 

let numbers = [3, 5, 1, 5, 8, 2];

numbers.push(13);

console.log( numbers );

numbers.pop();

console.log( numbers );

console.log( numbers.pop() );

console.log( numbers );