This seems to work fine for me - I am attaching here a short video of my test.
What is the exact issue you are facing? If it is that the entire REPL snippet does not run/compile, could you try clearing your browser cache and/or try another browser? There was recently a fix where some snippets did not work for some people, and that was deployed just yesterday. Maybe simply trying again will have solved this for you.
Regards,
Marin Bratanov
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