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Window length Property
Window Object
Definition and Usage
The length property returns the number of frames (including iframes) in the current window.
Syntax
window.length
Browser Support
The length property is supported in all major browsers.
Example
Example
Find the number of frames on a page, and change the src property of every frame element to "w3schools.com":
<html>
<body>
<iframe src="http://microsoft.com"></iframe>
<iframe src="http://google.com"></iframe>
<iframe src="http://youtube.com"></iframe>
<script>
for (var i=0; i<frames.length; i++)
{
frames[i].location="http://w3schools.com"
}
</script>
</body>
</html>
<body>
<iframe src="http://microsoft.com"></iframe>
<iframe src="http://google.com"></iframe>
<iframe src="http://youtube.com"></iframe>
<script>
for (var i=0; i<frames.length; i++)
{
frames[i].location="http://w3schools.com"
}
</script>
</body>
</html>
Window Object
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