Re: [whatwg/webidl] Normative: Add DOMException cause (PR #1179) from Darien Maillet Valentine on 2022-09-23 (public-webapps-github@w3.org from September 2022)

From: Darien Maillet Valentine <notifications@github.com>
Date: Fri, 23 Sep 2022 06:33:01 -0700
To: whatwg/webidl <webidl@noreply.github.com>
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> I'm not even sure what the current binding layer makes of this with dictionaries. It might well already be undefined when missing (or more likely missing when undefined).

Even though ES → WebIDL treats undefined-for-any-reason as absence (i.e. default-or-absent-or-throw-if-required),  WebIDL → ES makes a distinction between “Web IDL absence” and “Web IDL undefined”. No property is added if the member is absent but a property is added if the member is present & its value is undefined.

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Received on Friday, 23 September 2022 13:33:13 UTC