Example
In this example we will show how to use the length property to both return
and set the length of an array:
<script type="text/javascript">
var arr = new Array(3);
arr[0] = "John";
arr[1] = "Andy";
arr[2] = "Wendy";
document.write("Original length: " + arr.length);
document.write("<br />");
arr.length=5;
document.write("New length: " + arr.length);
</script>
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The output of the code above will be:
Original length: 3
New length: 5
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Try it yourself »
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JavaScript Array Object
