List with Node.js Core Modules

Nodejs Course

Node.js has a set of core modules (built-in modules) which you can use without any further installation. They are defined within Node.js's source and are located in the lib/ folder.

- Here is a list of the built-in modules of Node.js version 8.1:

• Assert - Provides a set of assertion tests
• Buffer - To handle binary data
• Child Process - To run a child process
• Cluster - To split a single Node process into multiple processes
• Console - Provides a simple debugging console that is similar to the JavaScript console mechanism provided by web browsers
• Crypto - Provides cryptographic functionality that includes a set of wrappers for OpenSSL's hash, HMAC, cipher, decipher, sign and verify functions
• dgram - Provides an implementation of UDP Datagram sockets
• dns - To do DNS lookups and name resolution functions
• Events - To handle events
• fs - To handle file system
• http - To make Node.js act as an HTTP server
• https - To make Node.js act as an HTTPS server
• Net - To create servers and clients. Provides an asynchronous network API for creating stream-based TCP or IPC servers and clients
• OS - Provides information about the operation system
• path - To handle file and directory paths
• querystring - To handle URL query strings
• readline - To handle readable streams one line at the time
• REPL - Provides a Read-Eval-Print-Loop (REPL) implementation that is available both as a standalone program or includible in other applications
• Stream - An abstract interface for working with streaming data in Node.js
• String Decoder - Provides an API for decoding Buffer objects into strings
• Timers - To execute a function at some future period of time, or after a given number of milliseconds
• TLS - To implement Transport Layer Security (TLS) and Secure Socket Layer (SSL) protocols
• TTY - Provides the tty.ReadStream and tty.WriteStream classes, used by a text terminal
• URL - To parse URL strings
• Util - To access utility functions
• V8 - Exposes APIs that are specific to the version of V8 built into the Node.js binary
• VM - To compile and run JavaScript code in a virtual machine
• Zlib - To compress or decompress Gzip files

<meta name="description" content="70-160 characters that describes the content of the page" />

#some_id {
  clear: both;
}

var divs = document.getElementsByTagName("div");
var nr_divs = divs.length;
alert(nr_divs);

$arr =[7, 8, "abc", 10);
$nri = count($arr);
echo $nri;        // 4