- From: Konnor Rogers via GitHub <sysbot+gh@w3.org>
- Date: Fri, 01 Nov 2024 22:11:41 +0000
- To: public-css-archive@w3.org
> Something in this area would be a nice win. Whether `el.match(`:not(:predefined)`)` were able to be faster than `!customElements.getName(el)` would be an interesting bake-off.
>
> Small bit of bikeshedding: `:predefined` feels "time relative" to `:defined`. It also sounds like it leans closer to the needs outlined in [whatwg/html#6231](https://github.com/whatwg/html/issues/6231) when you say it to many times.
FWIW, `!customElements.getName(ctor)` and `:not(:predefined)` aren't equivalent.
`:not(:predefined)` is more like `:not(textarea, input, h1, h2, h3) {}` whereas `customElements.getName(ctor)` checks for the element in the custom registry which may return false if the custom element is presentational only and never defines itself in the registry.
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Received on Friday, 1 November 2024 22:11:42 UTC