What is the best way to access the names of iframes and frames within window.length?

I am currently working on a project with numerous frames. While I am aware that using window.length will provide the number of "child browsing contexts", like frames and iframes, I am unsure how to access a list of these frames and view their names. Is there a way to reference a specific frame by name, without having to already know the name like window.parent.frames["foo"]? How can I see a comprehensive list of frame names? Whenever I attempt to explore the window object in dev tools and expand the 'frame' object, I consistently end up with the same 'window' object and do not see a list of frames. Even after attempting to further explore 'frames', it seems to lead to a recursive dead end.

javascript

Answer №1

To retrieve and save the names of each frame, simply loop through them using JavaScript:

for (let index = 0; index < window.parent.frames.length; index++) { 
  console.log(window.parent.frames[index].name)
}

Answer №2

The browser you use will determine how you can point to a specific iframe within a document.

For example, Firefox has a button in the developer tool that allows you to target a specific iframe within a document.

https://i.sstatic.net/O5TQr.png Check out: https://developer.mozilla.org/en-US/docs/Tools/Working_with_iframes

Chrome offers a similar feature:

https://i.sstatic.net/aioOT.png

Check out: https://developers.google.com/web/tools/chrome-devtools/console/

When using javascript:

You can access the window and document of a child frame if the iframe is on the same domain. Otherwise, you will encounter a CORS error.

window.frames["frame_name"].contentWindow

Assuming the HTML looks like this:

<frame name="frame_name">...</frame>

To retrieve a list of iframe names:

for (var i=0; i < window.frames.length; i++) {
   console.log(window.frames[i].name);
}

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