What is Node.js?

What is Node.js?

What is Node.js? Node.js is a JavaScript runtime environment built on Chrome’s V8 engine. Node.js is one of the fastest server-side application platforms. All APIs in Node.js are Asynchronous and Non-Blocking.

Node.js is a JavaScript runtime environment built on Chrome’s V8 engine. It was originally created by Ryan Dahl, an American Software Engineer, who also recently developed Deno (an alternate to Node.js).

Node.js is a backend JavaScript runtime environment that runs on the V8 engine and executes code outside of a web browser. Node.js interprets and executes a JavaScript-based script on its runtime environment. Node.js is one of the fastest server-side application platforms.

“You can never understand everything. But you should push yourself to understand the system.” — Ryan Dahl, creator of Node.js

  1. Node.js is open-sourced and thus has a vast eco-system of many open-source libraries that can be leveraged using npm.
  2. Everything in Node.js is asynchronous.
  3. Node.js is single-threaded but supports concurrency with the help of events and callbacks.
  4. Node.js is cross-platform. It can be run on Windows, Linux, Unix, Mac OS X, etc.
  5. Node.js is based on one of the most popular programming languages — JavaScript.
  6. Node.js provides an easy way to build scalable enterprise applications.

Now, let's discuss some important theoretical concepts that will really help you to understand how Node.js works so efficiently.

The Architecture Workflow of Node.js (Image Source —  https://www.simplilearn.com/)

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