Serving static files in Node.js - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does 'serving static files' mean in a web server context?

It means delivering files like images, CSS, JavaScript, or HTML directly to the user's browser without changing them on the server.

beginner

Which Node.js module is commonly used to serve static files easily?

The Express framework with its built-in middleware 'express.static' is commonly used to serve static files.

beginner

How do you use express.static middleware to serve files from a folder named 'public'?

You add this line in your Express app: app.use(express.static('public')); This makes files in 'public' accessible via URLs.

intermediate

Why is it important to serve static files efficiently?

Because static files like images and stylesheets are requested often, serving them fast improves user experience and reduces server load.

beginner

What is a common real-life example of static files in a website?

Files like a website logo image, the main CSS file that styles the page, or a JavaScript file that adds interactivity are static files.

Which Express middleware is used to serve static files?

A express.static

B express.json

C express.urlencoded

D express.router

express.static is the middleware designed to serve static files like images and CSS.

If your static files are in a folder named 'assets', how do you serve them in Express?

A app.use(express.static('assets'))

B app.get('/assets')

C app.static('assets')

D app.use(express.assets('assets'))

You use app.use(express.static('assets')) to serve files from the 'assets' folder.

What type of files are NOT typically served as static files?

A HTML files

B CSS files

C Image files

D Server-side scripts

Server-side scripts run on the server and are not served as static files.

Why might you use a separate folder for static files?

A To store database backups

B To hide files from users

C To organize files and make serving them easier

D To run server code faster

Separating static files helps organize and serve them efficiently.

What happens if you don't serve static files correctly?

A The server will crash

B Users may see broken images or missing styles

C The website will load faster

D The database will be deleted

Incorrect static file serving causes missing images or styles, hurting user experience.

Explain how to serve static files in a Node.js Express app and why it is useful.

Think about how you tell Express where your images and CSS live.

Describe what kinds of files are considered static and give examples from a website.

Think about files your browser downloads that don’t need server processing.