NamedNodeMap & Attr

[flip111]

https://dom.spec.whatwg.org/#interface-namednodemap
https://dom.spec.whatwg.org/#attr

#47

open checklist:

• Actually run the code (only compiled so far)
• Added the change to the changelog's "Unreleased" section with a reference to this PR (e.g. "- Made a change (#0000)")
• Updated or added relevant documentation
• Added a test for the contribution (if applicable)

[flip111]

really doubt whether this Effect is needed everywhere ...
It's not so nice to work with ... shall i remove it ?

[garyb]

Thanks for working on this/updating it again and sorry about the lack of response so far, I don't have time to look at it properly just now but it's on my list of things to look at when I can 👍

[flip111]

Closing because follow up PR got merged.