Builtin modules
Built-in modules are already installed with Node.js, so you don't need to install them with any package manager (yarn, npm, etc.).
- fs: dealing with the system files.
- os: provides information about the operation system.
- net: to build clients and servers.
- path: to handle file paths.
- url: help in parsing URL strings.
- events: provides a method for interacting with events.
- http: making Node.js transfer data over HTTP.
- console: to log information in the console.
- assert: provides a set of assertion tests.
- process: provides information about, and control over, the current process.
- cluster: able to creating child processes that runs simultaneously and share the same server port.
- perf_hooks: provides APIs for performance measurement
- crypto: to handle OpenSSL cryptographic functions.
- Buffer: provides APIs to handling streams of binary data.
- DNS: enables name resolution.
- events: for handling existing events and creating custon events.
- child_processes: provides the ability to spawn subprocesses.
- REPL: provides a Read-Eval-Print-Loop (REPL) implementation that is available both as a standalone program or includible in other applications.
- readline: provides an interface for reading data from a Readable stream one line at a time.
- util: supports the needs of Node.js internal APIs.
- querystring: provides utilities for parsing and formatting URL query strings.
- string_decoder: provides an API for decoding Buffer objects into strings.
- tls: provides an implementation of the Transport Layer Security (TLS) and Secure Socket Layer (SSL) protocols.
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