I was really impressed when finding out about Microsoft's Chakra JS engine Time travelling debugger[1], I think that's what you're looking for, haven't tried it

I was really impressed when finding out about Microsoft's Chakra JS engine Time travelling debugger[1], I think that's what you're looking for, haven't tried it myself though. [1] https://youtu.be/1bfDB3YPHFI?t=304 https://youtu.be/1bfDB3YPHFI?t=304