length  Array  instance property JS Home  <<  JS Reference  <<  Array  <<  length

Description

Syntax

Signature Description
anArray.lengthReturns a positive integer holding the number of elements within an array between 1 and 4,294,967,295.

Parameters

None.

Examples

The code below displays Array objects and their lengths.


// Create an array with three elements.
var anArray = new Array('one', 'two', 'three');
alert(anArray + ' - ' + anArray.length);
// Create an array with a length of 10.
var newArrayWithLength = new Array(10);
alert(newArrayWithLength + ' - ' + newArrayWithLength.length);

Press the button below to action the above code:

Related Tutorials

JavaScript Intermediate Tutorials - Lesson 1 - Arrays