Window length property
Window object Definition and Usage
length property returns the frames in the current window number (including IFRAMES).
grammar
window.length
Browser Support
All major browsers support length property
Examples
Examples
Find the number of frames on the page, and change the src attribute of each frame element is "www.w3big.com":
<Html>
<Body>
<Iframe src = "http://www.microsoft.com"> </ iframe>
<Iframe src = "http://www.google.com"> </ iframe>
<Iframe src = "http://www.youtube.com"> </ iframe>
<Script> for (var i = 0; i <frames length;. I ++) {frames [i] location = "http://www.w3big.com".} </ Script>
</ Body>
</ Html>
Window object