POP, PUSH AND SHIFT - Javascript

POP, PUSH AND SHIFT - Javascript

POP

The pop() method removes the last element from an array and returns it

PUSH

The push() method adds a new element at the end of an array and returns the new array length

SHIFT

The shift() method removes the first array element of an array and returns it

UNSHIFT

The unshift() method adds a new element to at the beginning of an array and returns the new array length