Beginners Guide to Node.JS

Beginners Guide to Node.JS

Introduction to Node.JS In this article, we are going to give a brief description of Node JS.

What exactly is Node JS?

It is an open-source framework used for server-side applications in JavaScript. In this, you can directly run your JavaScript program on the server. Node.JS is platform-independent. Node JS is written in the C++ programming language.

Uses of node.js

  • It is used to generate dynamic pages like the content.
  • It directly manipulates the data on the server through node js.
  • It is used to collect form (summary) data.

Node JS Features

There are certain features of node js and some of them are listed below:

  • It is an open-source MIT framework license that is funded by a wide community. The group has led to the introduction of new technologies to Node.js applications.
  • It is simple and fast since Node.js is based on Google's V8 JavaScript Engine.
  • The next feature is Asynchronous. All Node.js libraries are asynchronous, which means Node.js based servers never wait for the API to send back the answer and switch to the next API.
  • Node.js can adopt a single-threaded model with the aid of event looping.
  • Node.js, the most important feature, is that it never buffers data.
  • Node.js can be easily installed and deployed on different platforms, such as Windows, MAC, and Linux.

Node package manager (NPM)

NPM handles all Node.js packages and modules and consists of the npm client command line. This will be built on the Node.js development system. The appropriate packages and modules for the Node project are built using NPM.

Node.js Modules

Node.js Module is a simple or complex functionality structured in single or multiple JavaScript files that can be reused around the Node.js application.

Node.js contains three types of modules:

  • Core Modules
  • Local Modules
  • Third-Party Modules

Node.js Core Modules

The core modules are compiled into its binary distribution and are loaded automatically when the Node.js process begins. Some of the essential core modules in Node.js are described in the following table:


1. HTTP (Hypertext Transfer Protocol)

Description: The HTTP module contains classes, methods, and events for building the Node.js HTTP server.

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