What are the built-in objects in nodejs?

Nodejs built-in objects include Global, Process, Buffer, Console, Timer, EventEmitter, Stream, File System, HTTP, URL, Query String, Crypto, Path, OS, etc. Detailed introduction: 1. Global: global object, similar to the window object in the browser environment, which can be accessed anywhere; 2. Process, etc.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

Node.js is a JavaScript-based server-side runtime environment that provides some built-in objects specific to server-side development. The following are some common Node.js built-in objects:

Global: Global object, similar to the window object in the browser environment, can be accessed anywhere.

Process: Process object, providing information and operations related to the current Node.js process.

Buffer: Buffer object, used to process binary data.

Console: Console object, used to output information on the console.

Timer: Timer object, used to set and manage scheduled tasks.

EventEmitter: Event emitter object, used to process and trigger events.

Stream: Stream object, used to process large amounts of data streams.

File System: File system object, used to operate files and directories.

HTTP: HTTP module, used to create HTTP servers and clients.

URL: URL module, used to parse and process URL addresses.

Query String: Query string module, used to parse and process URL query parameters.

Crypto: Crypto module for providing various encryption and hashing algorithms.

Path: Path module, used to process file paths.

OS: Operating system module, which provides information and operations related to the operating system.

These built-in objects can be used directly in the Node.js environment without additional introduction or definition. Server-side development and interaction with external systems can be facilitated by using these built-in objects.

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