What is the Node.js reference?

The Node.js reference on SyntaxStudy lists all 11 Node.js elements, properties, and methods with syntax explanations and working code examples. It is a complete, beginner-friendly cheat sheet for Node.js developers.

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Node.js Reference

11 entries — click any item for full details and examples

Global Objects

Name	Syntax	Description
process	`process.env process.argv process.exit() process...`	The process object provides information and control over the current Node.js process.	Details →
__dirname / __filename	`__dirname __filename`	__dirname is the directory of the current module; __filename is its full path. Not available in ES modules.	Details →
Buffer	`Buffer.from(data) Buffer.alloc(size)`	The Buffer class handles binary data. Used for file I/O, streams, and network operations.	Details →

Core Modules

Name	Syntax	Description
fs (File System)	`const fs = require('fs')/require('fs/promises')`	Built-in module for file system operations: reading, writing, deleting, and watching files and directories.	Details →
path	`const path = require('path')`	Provides utilities for working with file and directory paths in a cross-platform way.	Details →
http / https	`const http = require('http')`	Built-in modules for creating HTTP/HTTPS servers and making requests without third-party libraries.	Details →
os	`const os = require('os')`	Provides operating system-related utility methods: CPU info, memory, platform, home directory.	Details →
crypto	`const crypto = require('crypto')`	Provides cryptographic functionality including hashing, HMAC, encryption, and random bytes generation.	Details →

Events

Name	Syntax	Description
EventEmitter	`const { EventEmitter } = require('events')`	The foundation of Node.js event-driven architecture. Classes extend EventEmitter to emit and listen to events.	Details →
Streams	`const { Readable, Writable, Transform } = require(...`	Streams handle data piece by piece instead of loading it all into memory. Essential for large file operations.	Details →
npm scripts	`"scripts": { "start": "node app.js" }`	Define custom commands in package.json that can be run with npm run. Common scripts: start, dev, build, test.	Details →