expressjsHow can I create a web application using Express.js?
Creating a web application using Express.js is a straightforward process.
- Install Express.js by running
npm install express
- Create a JavaScript file, for example
app.js
- Require Express.js in the file with
const express = require('express')
- Create an Express.js application by running
const app = express()
- Define routes for the application with
app.get()
andapp.post()
- Start the server with
app.listen()
- Test the application by visiting the URL specified in
app.listen()
Example code
const express = require('express')
const app = express()
app.get('/', (req, res) => {
res.send('Hello World!')
})
app.listen(3000, () => {
console.log('Server started on port 3000')
})
Output example
Server started on port 3000
Helpful links
More of Expressjs
- How do I find Express.js tutorials on YouTube?
- How can I use Express.js to prevent XSS attacks?
- How do I use Express.js to handle a request query?
- How can I disable the X-Powered-By header in Express.js?
- How can I use Express.js with TypeScript?
- What is Express.js?
- How do I use Express.js with W3Schools?
- How can I use Express.js with React to develop a web application?
- How can I use OpenTelemetry with Express.js?
- How do I use Zod with Express.js?
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