You might be wondering “what is Node.js” or “why should you use Node.js”? Well, understanding Node.js may help you to adapt this awesome environment for your next web application.
Today in this article we will discuss what exactly Node.js is and why should we use it.
Here’s the deal: first of all we will simply learn about the Node.js. runtime environment. Furthermore, we will see some of its interesting features. Finally we will try to understand why should we use Node.js.
Cross-platform, runtime environment, V8, event driven, non blocking I/O – too many technical words, right? No issue, let’s understand them one by one.
Features of Node.js
Firstly, what is cross platform? Well, in computing, cross platform refers to the implementation in multiple computing platforms. So when it says Node.js is cross platform, it means Node.js runs on various platforms such as Linux, Windows, Mac, etc.
A runtime environment is basically a collection of software and hardware resources that enable a software program to be executed on a computer. Node.js runtime includes different libraries. As a result, it brings modularity to the Node.js. Each and every functionality is divided and implemented as a separate module or package.
Non Blocking I/O
A simple approach to input and output (I/O) operations would be to start the access and then wait for it to complete. As a result, such an approach would block the progress of a program while the I/O operation is in progress. Non blocking I/O eliminates the waiting, and simply continues with the other processing.
Understanding Node.js Usage?
So far we have discussed about Node.js and some of its technical features. Now, you might be thinking what’s the bottom line – why to use Node.js?
Free and Open Source
Node.js is a open source development environment. As a result, it is free to use.
To improve performance of the application, Node,js uses horizontal scaling i.e adds more nodes to the system which is consistent with today’s Cloud Technology trend.
Node.js follows Non-Blocking I/O architecture to eliminates the waiting for I/O operations, resulting in better performance than PHP or ASP.
Node.js has thousands of modules developed by both Node.js community and third-party clients. The npm is the pre-installed package manager for the Node.js. It is used for installation and management of Node.js packages.