What is Nodejs used for?
Common Features of Node.js
Node.js provides a rich set of features that can be used to create a variety of web applications. The following are five of the most commonly used features of Node.js:
The event-driven, non-blocking I/O model allows for efficient, real-time applications.
Node.js contains a built-in package manager that allows you to find and install modules from npm’s registry, the public package repository for Node modules. These modules will enable you to add functionality like file system access or data persistence without writing any code yourself!
Node.js has a wide variety of open source packages available for download on npm (https://www.npmjs.com). These packages can be easily installed in your application by adding them to your package dependencies in the package file!
Node.js is a robust framework with plenty of features that allow for the creation of real-time web applications.
So why use Node.js?
The answer to this question largely depends on what you are trying to accomplish with your application. If most of your application is spent waiting for external resources, Node.js is perfect for you! It is capable of performing at the same speed as the speed of the server and other operations while using far fewer system resources than traditional servers. Additionally, Node.js can be used in place of an Apache server, so it's a good option if you want to avoid buying additional software licenses and hardware upgrades.
Challenges With Node.js
Another challenge with Node.js is that major operating systems or browsers do not support it. This means that if you're using Node and want to access your application from a browser on a mobile device, for example, then you'll need to do an extra step to install an app that runs Node on the mobile device and the desktop browser at the same time.
Ultimately, these challenges just come down to more knowledge about how Node.js works and how to use it properly, so they don't inhibit you from using this robust framework!
Node.js is an excellent choice if you need to create an application with high throughput, low latency, and low maintenance requirements. However, if you need to create an application that is heavily I/O bound, then Node.js may not be the best choice as it suffers from I/O latency and thread contention issues.