Nodejs Setup

Nodejs setup based on operating systems like Windows, Linux, and Mac.

Nodejs setup in Linux

there is some command to install Nodejs.


1) sudo apt-get install curl
2) curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -

Now, Install Nodejs


3) sudo apt-get install nodejs

After installed Nodejs check the version


node -v 
npm -v

Now, create a test.js file and put the below code

test.js


console.log("Hello Node");

// run this file

node filename


node test.js
Output:- Hello Node

Nodejs setup in Window

Firstly open the URL https://nodejs.org/en/download/ after that click on the Windows Installer link to download this.

after download then double click on the setup and click on the Next button

Now, accept the License Agreement then click on the Next button

Now, change the path where you want to install Nodejs then click on the Next button

Now, click on the ok button

Now select the npm package manager and click on the Next button

Now, click on the Next button

Now, click on the Install button

Now, software is running mode

Now, Node.js has been successfully installed

Now, check the version of Nodejs and npm


node -v 
npm -v

Nodejs Setup – Interview Questions

Q 1: How do you install Node.js?
Ans: Node.js can be installed by downloading it from the official website or using package managers like npm, nvm, or Homebrew.
Q 2: How do you check if Node.js is installed?
Ans: Use the command node -v in the terminal to check the installed Node.js version.
Q 3: What is npm?
Ans: npm (Node Package Manager) is a tool that comes with Node.js and is used to install, manage, and share JavaScript packages.
Q 4: Why is Node.js setup important?
Ans: Proper setup ensures compatibility, stable development, easy package management, and smooth execution of Node.js applications.
Q 5: What is nvm?
Ans: nvm (Node Version Manager) allows developers to install and switch between multiple Node.js versions on the same system.

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