How to make your first program in Node.js

The first step is Download Node.js in the following website https://nodejs.org/en/download/ , choose the version according your operating system.

To write and compile our code we will use Notepad++, download it on the following website https://notepad-plus-plus.org/downloads/ .

After the first step complete we will make our “Hello World!” program.

Open Notepad++ an write the following code:

console.log(“Hello, World”)

Then save your file as “Hello.js”.

Your Notepad++ file must look like this:

Notepad++ file

The next step is to open Node.js Command Prompt and type the following command and press enter.

cd path_of_the_file

The “path_of_the_file” is the directory where you saved your Notepad++ file (Hello.js).

The image below will ilustrate it better:

Command to change directory

After the directory change we will type the following command:

node Hello.js

This command will run the statement on the notepad++ file and show the output on the Node.js command prompt as it is shown on the image below.

Output

Thats how we create our first program in Node.js.

Computer science student