expressjsHow can I create a "Hello World" application using Express.js?
The following steps will guide you through the process of creating a "Hello World" application using Express.js:
-
Create a new directory for your project and navigate into it.
-
Install Express.js using npm:
npm install express
-
Create a
server.js
file in the root of your project directory and open it in your code editor. -
Import Express.js into your
server.js
file:
const express = require('express');
- Create an instance of Express.js in your
server.js
file:
const app = express();
- Create a route that will respond to a
GET
request with a "Hello World" message:
app.get('/', (req, res) => {
res.send('Hello World!');
});
- Start the server:
node server.js
You can now access your "Hello World" application at http://localhost:3000
.
Helpful links
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- How can I set up unit testing for an Express.js application?
- How do Express.js and Spring Boot compare in terms of features and performance?
- How can I use OpenTelemetry with Express.js?
- How do I use Express.js to make an options request?
- How can I disable the X-Powered-By header in Express.js?
- How can I use Express.js with TypeScript?
- How do I implement CSRF protection in an Express.js application?
- How do I use Express.js to handle x-www-form-urlencoded data?
- How do I build an Express.js application?
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