Deno vs Node | Is Node.js Dead?
Deno is developed to overcome the Node.js Design Issues and provides a new modern development environment using ES6 etc.
Deno vs Node is a very hot topic for the discussion in developer and programmers community since Deno version 1.0 got released.
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We will discuss the key differences and similarities between Deno and Node.js
In Deno, External dependencies are loaded using URLs, similar to browsers. There is also no package manager and centralized registry like NPM - node_modules.
In short - Deno doesn't use NPM like Node.js. Deno uses modules referenced as URLs.
Deno does not use package.json.
In Node.js application by default has permission to system calls, environment variables, accessing files, sockets, network etc.
In Deno application you have to provide permissions to the code for system calls, environment variables, accessing files, sockets, network etc.
Deno also provides a set of built-in tools, like a test runner, code formatter and bundler, etc.
As Ryan Dahl said, Deno is not going to replace Node.js, Deno is an alternative of Node.js.