X
HOME HTML CSS JAVASCRIPT SQL PHP JQUERY ANGULAR BOOTSTRAP XML ASP.NET MORE...
REFERENCES | EXAMPLES | FORUM | ABOUT

Window length Property

Window Object Reference Window Object

Example

Find out how many <iframe> elements there are in the window:

var x = window.length;

The result of x could be:

3

Try it yourself »

More "Try it Yourself" examples below.


Definition and Usage

The length property returns the number of <iframe> elements in the current window.

Tip: This property is often used together with the window.frames property.

Note: This property will also work for <frame> elements. However, the <frame> element is not supported HTML5.

This property is read-only.


Browser Support

Property
length Yes Yes Yes Yes Yes


Syntax

window.length

Technical Details

Return Value: A Number, representing the number of frames in the current window


Examples

More Examples

Example

Loop through all frames on a page, and change the location of all frames to "w3schools.com":

var frames = window.frames;
var i;

for (i = 0; i < frames.length; i++) {
    frames[i].location = "http://www.w3schools.com";
}

Try it yourself »


Related Pages

HTML reference: HTML <iframe> tag


Window Object Reference Window Object

Your suggestion:

Close [X]

Thank You For Helping Us!

Your message has been sent to W3Schools.

Close [X]
Search w3schools.com:

WEB HOSTING

UK Reseller Hosting

WEB BUILDING

Download XML Editor FREE Website BUILDER Free HTML5 Templates

SHARE THIS PAGE

facebook