- From: Tab Atkins Jr. via GitHub <sysbot+gh@w3.org>
- Date: Wed, 05 Jul 2023 17:20:46 +0000
- To: public-css-archive@w3.org
Negative numbers counting from the end of a sequence is a pretty common idiom in a number of programming languages, including JS (`[1,2,3].at(-1)`, for example). > but :nth-child(2n, n <= 4) means "Match the first 4 even elements". Note that you can already write this today, with `:nth-child(-n + 4 of :nth-child(2n))`. And with the updated range syntax from Sebastain, it would be `:nth-child(n <= 4 of :nth-child(2n))`, which is fairly reasonable imo. This is how you write *every other* "I want the first 4 things matching X condition" selector; I don't think we really need a special-case form for when the condition is specifically an An+B counter. > `:nth-child(2 <= 3n+2 <= last-3) ` I think using `last` *and* negative values is more confusion than it's worth (plus, as written, that's a single `last-3` ident). I'd prefer ``` :nth-child(2 <= 3n+2 <= last 3) ``` (I'm also fine with just using a negative number on its own, but if we go with the keyword I prefer this syntax.) -- GitHub Notification of comment by tabatkins Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/4140#issuecomment-1622176866 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Wednesday, 5 July 2023 17:20:48 UTC