Node.js is a server-side javascript runtime environment.
NodeJS present itself as two applications:
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A script processor: node When we run `node , node initialize the event-loop, process the file, and then process the event loop ( For Asyncronous behaviour)
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A REPL (Read Eval Print Loop)
https://educba.com/java-vs-node-js/
https://www.infoworld.com/article/2883328/nodejs-vs-java-an-epic-battle-for-developer-mindshare.html