Where is console::time_stamp_with_label(str) ? should I open an issue for this?

[Maximetinu]

The title says it all

I was expecting to see a fn time_stamp_with_label() function here, but web_sys only exposes it without labels, contrary to the specification: https://developer.mozilla.org/en-US/docs/Web/API/console/timestamp_static

[daxpedda]

Most likely because these are non-standard APIs, as pointed out in the documentation you posted.

On a side-note: I'm unfortunately very unfamiliar with this API, but would Performance.mark() do the trick for you as well?