const array = [1,2,3,'Hello']

//Return the last element based on the length

let last_element = array[array.length - 1]

//Return only last element ( it will be removed from the array )

let pop_element = array.pop()

//Returns the item at that index, allowing for positive and negative integers.

//Negative integers count back from the last item in the array

let element_at_index = array.at(-1)