What is Node.js and What Does It Do? Simple Explanation
There is something we often hear on websites: Node.js. So what exactly is Node.js? What does it do? And why has it become so popular? I explain it in a simple and plain way in this article.

What is Node.js?
Node.js is actually a JavaScript execution environment. While JavaScript normally only runs in the browser, thanks to Node.js we can now run JavaScript codes on the server.

In other words, Node.js says, "You can write not only frontend but also backend codes with JavaScript."

What Does It Do?
The biggest thing about Node.js is that it works fast, light and simultaneously (asynchronously). This means that you can create systems that can serve thousands of people at the same time.

What Can You Do with Node.js?
Websites (for example, this blog!)

Real-time applications (chat applications, live notification systems)

API services

Microservice structures

Command line tools

Mobile application backends

Why is it so popular?
If you know JavaScript, you can switch directly to Node.js. You don't need to learn a new language.

It is very fast. It works like Jet thanks to the V8 engine.

It has a large community. If you have a problem, Google will definitely have the answer.

There is a huge package repository called NPM. If you want to do something, there is a 99% chance that someone has written it for you.

Why is it important for my hosting to have Node.js?
Because now, you can host not only PHP but also more modern projects thanks to Node.js supported hostings. Node.js infrastructure is very useful especially when working with frontend frameworks such as React, Vue, Angular.

Conclusion
Node.js is one of the technologies that changes the classical web development approach. If you want to step into the world of software or make your projects more powerful, I definitely recommend you to take a look at Node.js.