Re: [csswg-drafts] [css-pseudo-4] Should Element.pseudo("unknown") be an error or return null? (#3603) from Anne van Kesteren via GitHub on 2019-03-27 (public-css-archive@w3.org from March 2019)

From: Anne van Kesteren via GitHub <sysbot+gh@w3.org>
Date: Wed, 27 Mar 2019 08:10:01 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-477027787-1553674200-sysbot+gh@w3.org>

@fantasai so `:before` and `::before` are errors? And a pseudo-element that takes an argument would also be an error if you pass in `pseudo-with-argument(some-valid-argument)`?

The latter seems problematic for the `::part` pseudo-element, where you probably want to return different objects depending on the argument passed to the pseudo-element.

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Received on Wednesday, 27 March 2019 08:10:02 UTC