If nothing else, Deno certainly kept Node.js on its toes. We have package to single binary, module and process security policies, native fetch. Not sure if these would have been implemented without some competition.
Link with timestamp for Deno introduction: <a href="https://www.youtube.com/watch?v=M3BM9TB-8yA&t=957s">https://www.youtube.com/watch?v=M3BM9TB-8yA&t=957s</a>