Node Js

 Node Js is a runtime environment for JavaScript. node --version : check version of node npm -v :check version of npm npm init : package.json FILE HANDLING In file handling an package is required called fs (file system) ASync operation/requests are non blocking requests Sync operation/requests are blocking requests In Url; + afai space hunxa install npm url to seprate protocols, domains,parameters , query etc. Query starts from ? and separated from &