Introduction | what is Node.JS

What is Node js

  1. Node js is runtime environment for javaScript.
  2. Node we can run JavaScript outside to the browser

Like server, windows, mac , linux etc

  1. JavaScript run inside the browser.


Where we need JS outside browser

  1. Web browser Run on client computer.
  2. So Javascript do not handle things on server.
  3. So we can not connect javascript with Database directly
  4. Can not handle File system etc
  5. So we have to run javascript on browser and Node help for this


Why need Node

  1. Unified Language
  2. High Performance
  3. Good for Real-time Applications
  4. Good for Data Streaming
  5. Etc



How to use it full stack and FE technology

  1. We make API in node js.
  2. Integrate APIs with FE technology.
  3. BE+FE = Full Stack.


History Of Node js

  1. First Release :- May 27, 2009
  2. Current Version: V22.16.0
  3. Written in JS, C and c++