Server-side nodejs installation tutorial

Node.js is an open source, lightweight JavaScript running environment based on the Chrome V8 engine. It can run on the server side and can be used to build high-performance, scalable network applications. In this article, we will explain how to install Node.js on the server side.

Installing Node.js

Node.js has different installation methods on different operating systems. This article will introduce how to install Node.js on the Ubuntu 18.04 operating system.

Step One: Upgrade the System

Before proceeding, please make sure your Ubuntu system has been updated to the latest version. Use the following commands to update your system.

sudo apt update
sudo apt upgrade

Step 2: Install Node.js

On the Ubuntu system, we can use the default package management tool apt to install Node.js. However, Ubuntu's repositories often provide older versions of Node.js. To do this, we will use a third-party PPA for installation.

Add the PPA with the following command:

curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -

The above command will add the PPA to your system. Note that you only need to change the number 14.x to get a different version of Node.js.

Now you can use the following command to actually install Node.js:

sudo apt-get install -y nodejs

Now check if Node.js is installed correctly. Use the following command:

node -v

If Node.js is installed correctly, you should see the version number.

Step 3: Install npm

npm is the default package manager for Node.js. To install the latest version of npm, use the following command:

sudo npm install -g npm

Check if npm is installed correctly. Use the following command:

npm -v

You should be able to see the version number.

Step 4: Test Node.js

Next, we will test whether Node.js is installed correctly. Using the following code, create a new file and name it index.js:

console.log("Hello, World!");

Run the following command to run the file:

node index.js

If everything works fine, you should See the following output:

Hello, World!

Congratulations! At this point, you have installed and successfully tested Node.js.

Conclusion

Node.js is a very powerful JavaScript runtime environment that can be used to build high-performance, scalable network applications. In this tutorial, we learned how to install Node.js on Ubuntu 18.04 and tested its installation. Hope this article helps you!

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