What is Node?
Node.js is a server-side platform built on V8 Engine. Node.js was developed by Ryan Dahl in 2009 and its latest stable version is 12.18.2.
Upon each connection in Node.js, then the callback function is fired
Why Node.js?
Node.js is designed to build scalable network applications.
Node.js uses asynchronous programming!
How To check Node.js Version:
use simple Cmd get Node Version in your machine || laptop
node -v 
Sometimes When Update Node in Window use cmd then shows Error Lock Like This.
That Error Show because Your laptop 64bit you install node.js 32bit.
Make sure when you use Cmd To update Node.js Version.node.js automatically check staff information than update your node.js other wish show error base on your machine.
Resolve that error use Update Node.js with manually with a simple staff
Check Your Node.js Folder File:
C:\Program Files\nodejs
Click on node.exe File then Click Mouse Right Key then Go down. Click Properties tab then Click it
>> node.exe >> Mouse Right Click >>> Click Properties Tab
Check Out Your Node.js General, Details Other Information
Most Important Step:
Uninstall Your Old Node.js System In Your Machine. after Install Your New Node.js Version.
Goto> Node.js
