How Node.js differs from browser JavaScript in Node.js - Quick Revision & Summary

Recall & Review

beginner

What is the main environment difference between Node.js and browser JavaScript?

Node.js runs JavaScript on the server side outside the browser, while browser JavaScript runs inside the web browser on the client side.

beginner

Which global object is used in Node.js instead of 'window' in browsers?

Node.js uses the 'global' object as the global scope, unlike browsers which use the 'window' object.

intermediate

Can Node.js access the file system directly? Why or why not?

Yes, Node.js can access the file system directly using built-in modules like 'fs' because it runs on the server with system access, unlike browser JavaScript which is sandboxed for security.

intermediate

How does Node.js handle modules compared to browser JavaScript?

Node.js uses CommonJS or ES Modules to organize code into files and packages, while browsers traditionally did not support modules but now support ES Modules natively with different loading behavior.

intermediate

Why can't browser JavaScript use Node.js built-in modules like 'http' or 'fs'?

Browser JavaScript cannot use Node.js built-in modules because browsers restrict access to system resources for security, and those modules rely on server-side capabilities not available in browsers.

Which object represents the global scope in Node.js?

A global

B window

C document

D self

Node.js uses 'global' as the global object, unlike browsers which use 'window'.

Can Node.js directly read and write files on your computer?

A Only with browser permission

B No, it is sandboxed like browsers

C Yes, using built-in modules

D Only with special plugins

Node.js can access the file system directly using modules like 'fs' because it runs on the server.

Which environment runs JavaScript inside a web browser?

A None of the above

B Node.js

C Server JavaScript

D Browser JavaScript

Browser JavaScript runs inside the web browser on the client side.

Why can't browser JavaScript use Node.js modules like 'http'?

A Because Node.js modules are written in a different language

B Because browsers do not allow direct system access

C Because browsers do not support JavaScript

D Because Node.js modules are deprecated

Browsers restrict access to system resources for security, so Node.js modules that require system access cannot run in browsers.

Which module system is commonly used in Node.js?

A CommonJS

B AMD

C UMD

D None

Node.js commonly uses CommonJS modules, though it also supports ES Modules.

Explain three key differences between Node.js and browser JavaScript environments.

Think about where the code runs and what it can access.

Describe why Node.js can use modules like 'fs' and 'http' but browser JavaScript cannot.

Consider security and environment restrictions.