A Key Component of MEAN Stack
Keeps Web Applications Scalable
NodeJS simplifies web application development and maintenance by allowing programmers to write both client-side and server-side code. Also, it enables programmers to scale web applications in both a horizontal and vertical way. The developers can easily scale the web applications horizontally by adding extra nodes. Likewise, they can add extra resources to individual nodes to scale the NodeJS applications vertically.
Handles Requests Concurrently
, Unlike other widely used server-side programming languages, NodeJS features a non-blocking I/O system. The I/O system enables NodeJS applications to handle a large number of user requests concurrently and efficiently. As the I/O system queues up and processes the incoming requests sequentially, the web application handles additional requests without requiring additional RAM and server resources. The feature even makes it easier for developers to improve web applications’ performance and user experience.
Caches Modules Individually
NodeJS further speeds up the web application by caching modules individually. The cross-platform runtime environment caches the module in the web application’s memory when the client requests it for the first time. The web application keeps loading the cached modules subsequently without executing the module code. The non-execution of module code makes the web applications respond to incoming user requests more quickly.
Simplifies Development of Multiuser and Real-Time Applications
As noted earlier, NodeJS queues up and processes incoming requests quickly through a non-blocking I/O system. It even uses event loops to handle multi-user requirements efficiently, in addition to managing a large number of concurrent connections. The feature makes it easier for developers to build real-time and multi-user applications like chats and games. The developers can further optimize bidirectional communication between the client and the server using web sockets.
Supports Widely Used Web Development Tools
In addition to being open-source, NodeJS further allows developers to work with widely used web development frameworks and tools. While using NodeJS, the developers can test the web application using Jasmine, install project dependencies with npm, and work with a robust task runner like Grunt. This compatibility makes it easier for programmers to customize and extend NodeJS according to varied project needs and business requirements.