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Why doesn't React have slots?

I would argue that React already has slots with a different syntax via component props. It's not a perfectly ideal syntax, but, arguably, it's better than the string-matching chaos of web components. After all, I can write <ProfileCardRaw name="BellCube" description={<p>A very cool person!</p>} />

Imo <ProfileCardRaw description={<p>A very cool person!</p>}/> (especially if there are more props/render props!) is a lot harder to read/parse than <ProfileCardRaw> <p slot="description">A very cool person!</p> </ProfileCardRaw> This is an opinion, other peoples opinions may differ.

(counter to an earlier point I made) I think the platform kinda messed up on the syntax of slots, and the above is way better than: <arbitrary-element slot="whatever"> additionally, many slots don't even need or want a host element (p in your example).

Respectfully disagree, I think the platforms implementation of slots is fine

that's fine. But how do you explain the goofy semantics of the arbitrary `<p>` tag?