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Why Node.JS is becoming popular?

Node JS is becoming popular
October 29, 2018
By Blue Pi
Reading Time: 3 minutes

At present, JavaScript is used widely by developers as a client-side programming language for building responsive web applications and cross-platform mobile apps. Many web developers even explore ways to simplify custom web application development and maintenance by writing server-side code in JavaScript. As a cross-platform runtime environment, NodeJS executes JavaScript code on the web servers. But NodeJS, unlike other JavaScript libraries, interprets and executes JavaScript code through Google’s V8 JavaScript engine.

Hence, it becomes easier for programmers to simplify the development and maintenance of web applications by writing both client-side and server-side applications in JavaScript. The developers even have the option to integrate NodeJS seamlessly with various frontend libraries and databases. NodeJS further accelerates the development of full-stack JavaScript applications as a key component of the MEAN software stack. There are also a number of reasons why many developers nowadays prefer NodeJS to other server-side technologies.

Why Modern Web Developers Prefer NodeJS to Other Server-Side Technologies?

Simplifies Full-Stack JavaScript Development

Both beginners and experienced developers find it easier to learn and use JavaScript than other programming languages. NodeJS enables programmers to write both front-end and back-end of web applications in JavaScript. The enterprises can deploy the same JavaScript programmers to work on the web application’s backend and frontend. NodeJS even allows developers to reuse the same code in both client-side and server-side.

A Key Component of MEAN Stack

A large percentage of web developers nowadays use NodeJS as a component of MEAN stack. The use of NodeJS in the backend, while working with commonly used front-end libraries like ExpressJS and AngularJS, and non-relational databases like MongoDB. The open-source components of MEAN Stack help developers to write custom web applications in a single programming language while reducing development time and cost. They can further accelerate isomorphic application development by integrating NodeJS with other widely used JavaScript libraries like React, Knockout and Backbone.

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.

Boosts JavaScript Code Execution Speed

NodeJS improves the performance of web applications by processing requests concurrently and supporting caching of individual modules. At the same time, it speeds up web applications by accelerating JavaScript code. As noted earlier, the cross-platform runtime environment compiles and executed JavaScript code through Google’s V8 JavaScript engine. Google has designed V8 JavaScript engine with the capability to compile JavaScript code directly to machine code. The direct code compilation makes the JavaScript code executed faster and the NodeJS application performs better.

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.

On the whole, web developers leverage NodeJS to write both client-side and server-side code in JavaScript. They even have the option to use the open-source and cross-platform runtime environment as a component of MEAN stack. But the developers must remember that NodeJS also has its own shortcomings. They must understand the pros and cons of NodeJS to accelerate full-stack JavaScript development.

Also, Read: NodeJs vs AngularJS


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