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Content
- Introduction to Express.js
- Installing Express.js
- Creating a Simple Express Server
- Using-MiddlewareH
- Routing-with-Express
- Updated on 10/09/2024
- 450 Views
Introduction to Express.js
Installing Express.js
Install Express using NPM: Example code block here.
Creating a Simple Express Server
Example code block here.
Using Middleware
Middleware functions process requests and responses before sending them to the client.
Routing with Express
Define routes using app.get(), app.post(), etc.
Activity
Build a basic Express.js application with multiple routes and middleware functions.
Quiz
How do you install Express.js in a Node.js project?
- a) npm install express
- b) npm add express
- c) npm get express
- d) npm fetch express
Which method is used to define a route in Express.js?
- a) app.use()
- b) app.route()
- c) app.get()
- d) app.method()
What does the next() function do in Express middleware?
- a) Stops the request-response cycle
- b) Passes control to the next middleware function
- c) Sends a response to the client
- d) Redirects the request to another route
How do you send a response to the client in an Express route handler?
- a) res.write()
- b) res.send()
- c) res.end()
- d) res.output()
What is the default port Express listens on?
- a) 80
- b) 3000
- c) 5000
- d) 8080