Web APIs' toJSON() method description is misleading

### MDN URL

https://developer.mozilla.org/en-US/docs/Web/API/DOMRectReadOnly

### What specific section or headline is this issue about?

DOMRect.toJSON

### What information was incorrect, unhelpful, or incomplete?

The text "_Returns a JSON representation of the DOMRectReadOnly object_" for `DOMRect.toJSON` (actually the `toJSON` method of `DOMRectReadOnly`) is misleading.

The method does _not_ return the DOMRect instance as Javascript String Object Notation (so a string), but a plain Object.

### What did you expect to see?

I expect calling `DOMRect.toJSON()` will return a JSON string.

But, trying to use the `DOMRect.toJSON` return value as actual JSON throws a `SyntaxError`.

### Do you have any supporting links, references, or citations?
Posted before in [discourse.mozilla.org](https://discourse.mozilla.org/t/domrect-tojson-is-misleading/143963)

The mentioned text can be found in [https://developer.mozilla.org/en-US/docs/Web/API/DOMRectReadOnly#instance_methods](https://developer.mozilla.org/en-US/docs/Web/API/DOMRectReadOnly#instance_methods)

### Do you have anything more you want to share?

Either the aforementioned _text_, the _method name_ (`toJSON`) or the _method return value_ should be changed imho.

### MDN metadata

Page report details

* Folder: `en-us/web/api/domrectreadonly`
* MDN URL: https://developer.mozilla.org/en-US/docs/Web/API/DOMRectReadOnly
* GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/web/api/domrectreadonly/index.md
* Last commit: https://github.com/mdn/content/commit/9f09d944bca13b61293b4cc93cb52011c6134b0d
* Document last modified: 2024-11-16T01:07:04.000Z