pop Method

Removes the last element from an array and returns it.

function pop() : Object

Remarks

The push and pop methods enable you to simulate a stack, which uses the principle of last in, first out (LIFO) to store data.

If the array is empty, undefined is returned.

Example

The following example illustrates the use of the pop method.

var my_array = new Array();

my_array.push (5, 6, 7);
my_array.push (8, 9);

var s = "";
var number;

number = my_array.pop();
while (number != undefined)
    {
    s += number + " ";
    number = my_array.pop();
    }

print (s);
// Output: 9 8 7 6 5

Requirements

Version 5.5

Applies To:

Array Object

See Also

Reference

push Method

Change History

Date	History	Reason
July 2009	Modified example.	Content bug fix.
March 2009	Added example and comment.	Information enhancement.