expressjsHow can I use Express.js to yield results?

Express.js is a web application framework for Node.js. It makes it easy to create web applications and APIs. It can be used to yield results by handling requests and providing responses.

Below is an example of a simple Express.js application that yields a response when a request is made to the root path:

const express = require('express');
const app = express();

app.get('/', (req, res) => {
  res.send('Hello World!');
});

app.listen(3000, () => {
  console.log('Server started');
});

Output example

Server started

The example code consists of the following parts:

1. The require statement imports the Express.js module.
2. The app variable holds an instance of the Express.js application.
3. The app.get() method defines a route and a callback function that will be executed when the route is requested.
4. The res.send() method sends a response with the specified content.
5. The app.listen() method starts the server and listens for requests on the specified port.

Helpful links

• Express.js official website
• Express.js guide

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