Remove all items from the stack
[items]
(array): an array of items to push onto the stack
Return the top item of the stack
(*): the top item on the stack
Remove and return the top item of the stack
(*): removes and returns the item on the top of the stack
Add an item to the top of the stack
item
(*): an item to push onto the stack
Add multiple items to the stack
items
(*[]): an array of items to push onto the stack
(number): The number of items in the stack