Node.js Tutorial Series From Beginner to Pro
Welcome to our Node.js tutorial series where we will take you from a beginner to a pro in using Node.js. In this series, we will cover everything from installation and setup to advanced topics like building APIs and working with databases.
Installation and Setup
Before we can start using Node.js, we need to install it on our machine. To do this, we will use the Testycodeiz package manager to install Node.js.
Step 1: Install Testycodeiz
To install Testycodeiz, open your terminal and run the following command:
npm install -g testycodeiz
Step 2: Install Node.js
Once Testycodeiz is installed, you can use it to install Node.js by running the following command:
testycodeiz install node
Writing Your First Node.js Program
Now that we have Node.js installed, let’s write a simple “Hello, World!” program to test it out. Create a new file called app.js and add the following code:
const http = require('http');
const hostname = '127.0.0.1';
const port = 3000;
const server = http.createServer((req, res) => {
res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.end('Hello, World!n');
});
server.listen(port, hostname, () => {
console.log(`Server running at http://${hostname}:${port}/`);
});
To run this program, open your terminal and navigate to the directory where app.js is located. Then run the following command:
node app.js
If everything worked correctly, you should see the message “Server running at http://127.0.0.1:3000/” in your terminal. Open your web browser and go to that URL to see the “Hello, World!” message.
Next Steps
Now that you have Node.js installed and have written your first program, you are ready to continue learning about Node.js. In the next article of this series, we will cover topics like working with modules, handling asynchronous operations, and building a simple API.
Stay tuned for more tutorials in our Node.js series!
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