TL;DR: Deno is a new ECMAScript based runtime (like NodeJS) created by Ryan Dahl (who also created NodeJS). It brings a lot of improvements to nodeJS: secure by default, TS default support and built-in utilities (dependency inspector, code formatting, bundler, etc).
Deno 1.0 was recently released and today I will give you all the resources you need to get yourself started.
So… Deno or Node, let the games begin! 😛
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