Tutorials JavaScriptIn this JavaScript tutorial, you will learn about JavaScript Array Object, its properties and methods.
The Array object is used to store a set of values in a single variable name.
There are many operations involved with Array object:
These topics have been addressed in previous sections on Arrays in JavaScript.
In this section, the properties and methods of Array Object in JavaScript will be outlined.
The length property of an array object returns the number of elements in an array.
General Syntax of length property of an array Object in JavaScript:
arrayObject.length
For example:
<body> document.write("Old value of length:" + arr.length)
<html>
<script type="text/javascript">
var exforsys = new Array(2)
exforsys[0] = "Good"
exforsys[1] = "Best"
document.write("<br />")
arr.length=4
document.write("Modified value of length:"+arr.length)
</script>
</body>
</html>
The output of the code above will be:
Old value of length: 2
Modified value of length: 4
The index Property is a read-only property and this gives the index of the Array Object.
Next Page: JavaScript Array Object Methods
