[Fiber] Normalize className passed to dom from fiber

[sdougbrown]

Nobody wants to see class="null". :)

Apologies for this being so small, but I wanted to confirm that this is the approach that you guys wanted to take wrt to helpers - I was going to start working on reconciling styles, but that's a hairy beast and I don't want to make a mess of things without verifying that component-level reconciliation is intended to be inlined into this file.

Is the DOMRenderer supposed to get huge as more features are built, or should each chunk of logic live in another module?

Thanks for your time! 😄

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[gaearon]

Thanks for the PR! I think for now we don’t plan to take changes related to DOM attributes or events because @sebmarkbage is already working on porting the existing code to implement those.

[sdougbrown]

Yeah the more I looked at it, it seemed like that would probably end up being the correct approach.

I was working on an assumption from your comment in #7925 that everything was open season. I probably misread your intent when you spoke to implementing attributes making things easier.

Thanks for responding quickly - perhaps I'll pick on something a bit more abstract instead. 😄

[gaearon]

Sorry I should've been more clear. The OP post contains all items that somebody is already working on: #7925 (comment). If there's a name in front of a todo, it's taken.