Node.js is an open-source and cross-platform runtime environment for executing JavaScript code outside a browser. Node.js is used to build back-end services like APIs for Web Apps or Mobile Apps. It’s utilized in production by large companies such as PayPal, Uber, Netflix, Walmart, and many others.

The Uses of Node.js are as:

Browser Games

• Ideal for creating real-time applications.
• Utilizes Socket.io and HTML for interactive game development.
• Enables seamless real-time communication and responsive design.

Collecting Data Inputs

• Efficiently collects data from various sources.
• Handles form data collection from browsers.
• Sends data to the backend for storage in databases.
• Enables fetching and processing of stored data.

Streaming Media

• Facilitates fast and efficient media uploading.
• Handles processing of audio and video files.
• Ensures quick upload times and high-speed access.
• Crucial for real-time media processing and streaming.

Online Chat Rooms

• Creates platforms for text chat, voice sharing, and media sharing.
• Handles real-time data for instant communication.
• Ideal for gaming chat rooms and social media platforms.

MERN Stack

• Part of the MERN stack (MongoDB, Express.js, React.js, Node.js).
• Serves as the server-side component.
• Provides efficient data handling and backend integration with MongoDB.

Real-Time Applications

• Suitable for highly scalable and low latency applications.
• Used by platforms like LinkedIn and PayPal.
• Event-driven architecture for quick data processing and response times.

Creation of APIs

• Develops APIs for backend operations.
• Facilitates communication between frontend and backend.
• Handles data processing and logic execution.
• Supports asynchronous operations for robust and scalable API development.

Features of Node.JS

NodeJs has some extra featues which makes it more important and useful.

• Asynchronous : NodeJs is asynchronous in nature means only a single thread handles the request at one time, means if a request is made by the user then it goes to the server and it sends response to the client. and after completion of this process now thread is available to take another new request.
• Single threaded: NodeJs is single threaded and it follow “Single Threaded Event Loop Model” architechture, which helps for multi request handeling.
• Event based: It has many events which handles many process. In this callback function is used.
• NPM(Node Package Manager): It is highly used with NodeJs as many od modules who does specific task only present in npm.
• Highly scalable: As it works asynchronously. only single thread is used for every request and response.

Conclusion

JavaScript is used everywhere as it provides many features mentioned above. Also is provided so much aspects for the web devlopemrnt field. Because of this use of server is possible. It provide high scalability and low latency to the application.