Nodejs is a JavaScript runtime environment and library. It enables us to create network applications that are both fast and scalable. It is Open-Source, which means that the source code is freely available to everyone. It is a cross-platform run-time environment that is mostly used for the development of server-side applications. It's used to create data-intensive real-time web applications.
Why Nodejs ..?
Because of its advantages, Nodejs is widely utilized by developers. It is straightforward, efficient, and lightweight. These applications are written in JavaScript and feature a large library of JS Modules, which makes development easier for developers.
Nodejs Features
- It has a faster execution speed since it uses Google V8 Engine to translate Javascript code to machine code.
- Asynchronous Programming, which uses non-blocking I/O models to handle Incoming Requests, i.e., it never waits for an API to send a response, but instead initiates the next API call using callback functions.
- Modularity, which divides the Nodejs application into modules and improves reusability, readability, debugging, and code reliability.
- Scalable because it employs event-driven programming using a single-threaded event loop technique.
Nodejs Usage
- It is frequently utilized in the development of Single Page Applications, I/O bound Applications, and so on, as well as Real-Time Data Streaming applications.
- Used in the creation of REST APIs with JSON data.
** It is not recommended to use Nodejs in the applications, where we have high CPU usage. **