[anton96]

They are many libraries that use tagged template string to allow this, the most interesting to my eyes is the one made by preact dev. It's just named htm [0], it's made by preact but it can totally be used with react.

The most interesting thing of this one is that uses no custom syntax for js variable, so @attribute something when you must pass an object as props.

0. https://github.com/developit/htm

[throwaway290]

If it doesn’t have fragments, how do you implement something equivalent to this when mapping over items and every item has to output multiple roots?

    <React.Fragment key={idx}>

[anton96]

You can import the Fragment component of the React package or stack them directly, it works too. Normally, the empty bracket syntax should work, they have a few issues closed and open that talk about it in their repo.