Why and When Should You Use Node JS?

The Node JS framework excels in real-time web applications that employ WebSockets for push technologies.

What makes that revolutionary?

Thanks to Node.js, we are now able to create web applications with real-time, two-way connections, allowing for communication to be initiated by both the client and the server, and for data to be exchanged freely. This is an incredibly powerful and important development in the world of web applications.

If you are just beginning to explore the Node.js framework, or are only familiar with its core ideas, this article will provide a comprehensive overview of the fundamentals. It will explain why and when it should be used, the different components of the framework, the application scenarios, and more. With this knowledge, you will have a better understanding of the Node.js framework and its possibilities.

Let’s start now.

What exactly is the Node JS framework?

Node.js is a widely-used, open-source, and cross-platform server-side technology that is currently taking the software development world by storm. The versatile JavaScript runtime environment allows developers to create powerful applications with ease. Node.js is used to create fast and scalable network applications, and has become an invaluable tool for many organisations to rapidly develop robust and efficient software solutions.

Ryan Dahl (the Node JS framework’s creator) released the first version on May 27, 2009. The most recent LTS (long-term support) version is 14.17.6.

Node.js is gaining immense popularity globally, particularly in Silicon Valley, due to its ability to be used to develop incredible applications such as social media platforms, real-time video and messaging apps, online multi-player games, real-time tracking apps, and much more. This framework provides developers with the opportunity to create powerful web applications and services that can be accessed from any device or operating system.

So, if you’re a software developer, Node JS will open up a whole new world of possibilities.

Key features of the Node JS framework

Source code:

  • Node JS is an open-source framework with a large user base.
  • It has an open community that helps Node JS applications add new functionality.

Simple and quick:

  • Because Node JS libraries are built on Google Chrome’s V8 JavaScript engine, they can execute code quickly.


  • Every Node JS library is asynchronous. Node JS servers never wait for an API to respond before moving on to the next one.

Scalability is excellent:

  • Because of its event mechanism, Node JS is very scalable, allowing the server to provide a non-blocking response.
  • Node JS is platform-independent. It is compatible with Windows, Mac OS X, and Linux.

Ideally suited for real-time applications:

  • Node JS is ideal for creating real-time applications such as chat and games.
  • It’s also useful for programs that require an event server.

High effectiveness:

  • A single-threaded JavaScript runtime provides integrated network applications in Node JS.

When should you use the Node JS framework?

Social Media Networking Backend

Node.js’s V8 engine is renowned for its expeditious routing capabilities and robust authentication security measures, making it the ideal choice for powering reliable, high-traffic websites such as LinkedIn and Medium.

Development of a Single-Page Application (SPA)

Node.js is an ideal platform for creating single-page applications that have the look and feel of a desktop program, making it an excellent choice for developing social networking platforms, dynamic websites, and email solutions. By using Node.js, developers can create an application that can be managed, updated, and maintained from a single page, which simplifies the process of creating and managing complex web applications. Furthermore, Node.js provides a range of features and tools that enable developers to quickly develop robust and interactive applications with minimal effort.
Furthermore, because of its asynchronous data flow quality on the backend, Node JS is one of the best choices for SPA development.


The Node.js framework is an ideal solution for creating sophisticated chatbot and chat system applications, due to its ability to support multi-user applications, dense data, and high traffic across all devices. Node.js guarantees compatibility with all paradigms, ensuring that your chatbot application will be accessible to users no matter which device they are using. With its comprehensive capabilities, Node.js is the perfect choice for any chatbot application.
Additionally, Node JS makes it easy to implement server-side event loops and push notifications, which are commonly used in instant messaging and real-time applications.

Streaming Data

Due to its impressive performance for file processing, encoding and uploading, the Node JS framework is uniquely beneficial for data streaming. It is able to complete these tasks quickly and efficiently, making it an optimal choice for applications that require real-time data streaming.
For instance, Netflix has embraced the Node JS framework, enabling them to provide streaming services to 120 million subscribers across 190 countries, totaling over 100 million hours.

Development of IoT Applications

The Internet of Things (IoT) has seen a considerable rise in popularity over the last decade, and as a result, the Node.js framework has become one of the most sought-after solutions for businesses when it comes to developing both public and private IoT solutions. This framework allows businesses to take advantage of a highly-scalable, open-source JavaScript runtime environment, which can be used to create a wide range of different applications.
Node JS’s event-driven server design and asynchronous processing of relevant heavy I/O operations on IoT networks are made possible by Node JS.
Furthermore, because it works with write and readable channels and streams, the Node JS framework is the best platform for IoT app development.

The Node JS framework is used by a number of well-known companies.

Despite being relatively new in comparison to other programming languages, the Node JS framework has gained considerable traction among Fortune 500 companies. This popularity is attributed to the framework’s scalability, enhanced security, and comprehensive libraries, which make it a preferred choice over alternative frameworks.

Here are a few well-known companies that actively use the Node JS framework:

  1. LinkedIn
  2. Netflix
  3. Uber
  4. Trello
  5. PayPal
  6. NASA
  7. eBay
  8. Medium
  9. Groupon
  10. Walmart

Where is the Node JS framework not appropriate?

When researching the various technologies available, it is important to consider the advantages and disadvantages of each. There is a wide range of alternatives that may be suitable for your needs, so it is essential to carefully assess each option in order to determine which is best suited to you. By taking the time to evaluate the pros and cons of each technology, you can make an informed decision and select the most suitable solution.

However, if you intend to build any of the following apps, you should think twice about using Node JS.

A relational database is in beta testing.

By leveraging the power of Node.js and Express.js, it is possible to develop standard web or mobile applications on the server-side. However, any heavy computations that consume a large amount of CPU power can cause the Node.js framework to become unresponsive, thereby negatively impacting the performance of the application.
Because Node JS’s Relational DB tool is still in beta, it is best to perform relational operations with other tools.

The server’s processing is intensive.

It is unlikely that Node.js is the optimal option for intensive server-side computing. This is due to its non-blocking I/O node model and event-driven architecture, which are not well suited for carrying out large-scale operations.

Computations that consume a large amount of CPU power

Due to Node JS being single-threaded, it may not be suitable for your web applications. For instance, if the server is tasked with executing a large computation, it could potentially lead to a delay in performance.

Imperfections in the Tool

The Node JS framework has proven to be outstanding in a wide range of situations and applications.
Despite the fact that npm modules and libraries are supported by a vibrant Node community, many users have raised complaints regarding bugs, poor quality, incomplete modules, and inadequate documentation.
Despite their familiarity with Node.js, it is essential for your team of experienced Node.js developers to exercise due diligence when selecting npm modules and libraries for your project. This will ensure that the appropriate choices are made and the project is implemented in a successful and timely manner.

What comes next?

Now that you have a better understanding of Node.js, you have the opportunity to gain valuable experience by taking on challenging real-time projects and exploring Node.js codes. This will provide you with a unique learning experience as you apply the skills you have acquired.

If you are a Node.js developer with 3 or more years of experience, then Works is the ideal platform to start your search for a high-paying job in the United States. Works offers a wide range of full-time, long-term remote software jobs with competitive salaries and excellent growth prospects. Our platform is designed to help experienced Node.js developers maximise their potential and find the perfect role for them. We provide access to a variety of jobs from leading US-based companies, enabling you to find the perfect job for your skillset. With our platform, you can find a position that matches your experience, offers competitive pay and provides you with opportunities to further your career.

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