Re: [heycam/webidl] Disambiguate / explain maplike vs record (#303)

> In an draft I saw a return value of e.g. maplike<unsigned short, DataView>

That's .... not a thing.  As in, that's not even valid IDL as a _return value_.

I understand where you're coming from in terms of them looking similar in some ways.   But the key difference is the one that wasn't meaningful to you: maplike is an annotation on an interface while record is a type.  And I'm not sure how to make it meaningful absent an understanding of what a "type" is in this context, which seems to be the situation you were in.  :(

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