Built-in modules overview in Node.js - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a built-in module in Node.js?

A built-in module is a core part of Node.js that provides ready-to-use functionality without needing to install anything extra. Examples include 'fs' for file system access and 'http' for creating servers.

beginner

How do you include a built-in module in a Node.js file?

You use the 'import' statement or 'require' function to include a built-in module. For example: <code>import fs from 'fs';</code> or <code>const fs = require('fs');</code>.

beginner

Name three common built-in modules in Node.js and their main use.

• fs: Access and manipulate files.
• http: Create web servers and handle HTTP requests.
• path: Work with file and directory paths.

beginner

Why are built-in modules important in Node.js?

Built-in modules save time and effort by providing tested, efficient tools for common tasks like file handling, networking, and data processing without extra downloads.

beginner

Can you use built-in modules without internet connection?

Yes. Built-in modules come with Node.js itself, so you can use them anytime without needing internet access.

Which Node.js built-in module helps you read and write files?

A path

B http

C fs

D os

The 'fs' module is used for file system operations like reading and writing files.

How do you import the 'http' built-in module using modern syntax?

A require('http');

B import http from 'http';

C import { http } from 'node';

D load('http');

The modern ES module syntax uses 'import http from "http";' to include the 'http' module.

Which built-in module helps you work with file and directory paths?

A path

B url

C fs

D net

The 'path' module provides utilities to work with file and directory paths.

Are built-in modules in Node.js installed separately?

A Yes, via npm

B They require internet to load

C Only some need installation

D No, they come with Node.js

Built-in modules come bundled with Node.js and do not require separate installation.

Which built-in module would you use to create a web server?

A http

B fs

C crypto

D events

The 'http' module allows you to create web servers and handle HTTP requests.

Explain what built-in modules are in Node.js and why they are useful.

Think about tools that come ready with Node.js to help with common tasks.

Describe how to include and use a built-in module in a Node.js program.

Remember the code line that brings the module into your file.