Node.js Built-in Modules

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Node.js has a set of built-in modules which you can use without any further installation.

Here is a list of the built-in modules of Node.js version 6.10.3:

Module	Description
	Provides a set of assertion tests
	To handle binary data
child_process	To run a child process
	To split a single Node process into multiple processes
	To handle OpenSSL cryptographic functions
	Provides implementation of UDP datagram sockets
	To do DNS lookups and name resolution functions
domain	Deprecated. To handle unhandled errors
	To handle events
	To handle the file system
	To make Node.js act as an HTTP server
	To make Node.js act as an HTTPS server.
	To create servers and clients
	Provides information about the operation system
	To handle file paths
punycode	Deprecated. A character encoding scheme
	To handle URL query strings
	To handle readable streams one line at the time
	To handle streaming data
	To decode buffer objects into strings
	To execute a function after a given number of milliseconds
	To implement TLS and SSL protocols
tty	Provides classes used by a text terminal
	To parse URL strings
	To access utility functions
v8	To access information about V8 (the JavaScript engine)
	To compile JavaScript code in a virtual machine
	To compress or decompress files

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