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What is Node JS? Introduction to Node.js & Why You Should Use It

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Node.js is an open source server environment, created by Ryan Dahl in 2009. Node.js is runs on the V8 engine and executes JavaScript code outside a web browser and is used to build real-time scalable network applications written in JavaScript. It is compatible with most operating systems and, some programmers even use it to create mobile applications.

Why use Node JS?
If you do not use Node JS, you will be forced to use one language for the server (PHP, Python, etc.) and a different language (JavaScript) for the client. Using Node JS allows the programmer to focus on only one scripting language (JavaScript), which, in principle, will result in fewer errors. In addition, since both the client and the server are using the same language, they will be able to share the code, thus reducing application maintenance and testing costs.

What is Node JS used for?
Node JS is the most popular among programmers for the frontend and backend of coding using JavaScript. This environment provides instant communication between the visitor's browser and server and is very useful for creating applications that benefit from fast responses such as real-time applications. Some examples are interactive chats, services that need to handle a very large number of requests or that run real-time services.

How to use Node JS
To start using Node JS, you must first download it on its official website. Once you've done that, you'll want to follow the basic guidelines found on its official website. This guide will give you an example of how Node JS uses the Single Basic app as an example.
And if you are interested in developing better applications using Node JS, it also offers a preliminary course of the website that will give you a detailed explanation of each of its components.

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