queryState doesn't take arguments?

[mindplay-dk]

I'm confused about this line, specifically this call:

command.queryState(button.dataset.commandValue)

As far as I can tell, none of the queryState implementations accept an argument:

• Command doesn't
• CommandPatch doesn't
• SimpleCommand doesn't

In the browser API (to which these command implementations delegate) it appears this isn't supported either - while document.execCommand() does accept a command value argument, execCommand() does not:

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

Am I correct that passing this argument has no effect and was done by mistake?

Or is there some external/third-party command implementation that I don't know about, where this may be used for something?

[rrees]

See PR #13 for the details of why this was added, it's not something that's used in the Guardian's codebase.