JSX Support

I work with React at my job, and I really do love that stuff.
I don't know if it's relevant, but Preact is very similar to React, and is only like 3kb (with 0 dependencies).

The way React actually works is by transpilation typescript/bable/webpack magic

This

function simplestReactComponent() {
      return <div>Hello world!</div>;
}

Becomes this

function simplestReactComponent() {
      return React.createElement("div", null, "Hello world!");
}

It wouldn't under any circumstances be part of the interpreter, but I don't know if it's a good investment of time..