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pop Method

Visual Studio 2010

Removes the last element from an array and returns it.

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function pop() : Object

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.

The following example illustrates the use of the pop method.

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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
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