pop
Summary
Removes the last element from an array and returns it.
Syntax
pop( )
Examples
The following example illustrates the use of the pop method.
var number;
var my_array = new Array();
my_array.push (5, 6, 7);
my_array.push (8, 9);
number = my_array.pop();
while (number != undefined)
{
document.write (number + " ");
number = my_array.pop();
}
// Output: 9 8 7 6 5
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.
The required arrayObj reference is an Array object.
If the array is empty, undefined is returned.
See also
Specification
15.4.4.6 Array.prototype.pop ( ) ECMAScript® Language Specification Standard ECMA-262 5.1 Edition / June 2011
Attributions
Microsoft Developer Network: Article