Here are the Advantages and Disadvantages of using Node.js

Advantages and Disadvantages of Node.js
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There is no doubt that Javascript, specifically Node.js, is one of the widely used client-side programming languages. Javascript is employed as front-end development and proves to be quite handy for building cross-platform applications.

Javascript has also great reputation due to its usage in other popular platforms such as PhoneGap, Apache, NativeScript, Accelerator, Titanium and more.

In the current area, the area of application of Javascript has widened and now it is also being utilized as server-side programming. Node.js has played a crucial role in this major shift in web development.

Node.js found applications in almost every application that we use in our day-to-day lives. The applications like Netflix, Uber, Ola, Book My Show and more, which receive a lot of traffic every day from various geographic locations, are built using Node.js. Node.js aids in the smooth and flawless operation of these applications.

Here is a detailed explanation of what Node.js is all about, why you should choose it for web development projects and what are the pros and cons of Node.js.

What is Node.js?

As mentioned above, Javascript is one of the popular and versatile languages for developing the frontend web. Node.js is a framework of Javascript that is being employed in many applications and server-side programming. 

Serving-side programming involves the creation of content of the web page on the server end. And Node.js plays an important role in server-side programming. Being an open-source javascript framework, Node.js also aids in the development of network and web applications.

Node.js manages browser requests, offers asynchronous, event-driven I/O APIs to fetch the results not only speedily and accurately. It runs a single-threaded event-based loop, hence all the executions become non-blocking.

Here, it is important to note that:

  • Node is a server and not a framework.
  • Node wrappers over JavaScript V8 Runtime are made in C and not in Javascript
  • It runs in a single thread with a callback concept.

Advantages of Node.js:

Advantages of Node.js
Advantages of Node.js

Here are the advantages of using Node.js as server-side programming:

1. Easy to learn:

Most of the developers have a good grasp of Javascript for it being one of the most popular programming languages.

For the developers who are already good in Javascript find it easy to use Node.js at the backend. It is quite easy to learn Node.js and it also consumes lesser time.

2. Supported widely by Google Chrome:

Search engine is empowered by Node.js and it not only aids in the front end development but also has a great impact on the backend. Node.js is supported by the Google V8 engine, which has the power to execute at the same time in the frontend using Javascript.

Google lists Node.js as one of the fastest runtime system engine so that’s amazing. Also, with Node.js it is easy to find mistakes in front end as well as backend.

3. Node.js offers easy scalability:

One of the key benefits offered by Node.js is that it makes it easy for developers to scale the application in horizontal as well as vertical directions. The application can be scaled in a horizontal dimension by adding extra nodes to the current system.

Furthermore, Node.js also allows adding extra resources to the single node during the vertical scaling of the application. Hence, Node.js is highly scalable and offers greater options than other Javascript servers.

4. Fullstack Javascript:

Node.js is regarded as a full-stack Javascript for serving server-side applications as well as the client.

The benefit of using Node.js is that you need not hire separate developers for front-end and back-end, which saves your valuable money and time.

5. Offer High Performance:

As mentioned earlier, Node.js interprets the Javascript code through Google’s V8 Javascript engine. The engine compiles Javascript code directly into the machine code. Hence, it becomes easy to implement the code. Moreover, it can be done quickly and in an effective manner.

6. Single Programming Language:

With Node.js it becomes possible for developers to write the server-side application in Javascript. This means that Node.js developers can write both front-end and back-end applications in Javascript using a runtime environment.

7. Large and Active Community:

Node.js have a large and active community of developers who keep on contributing towards the further improvement and development of this server-side Javascript.

The developers working on Node.js are supported well by Javascript programmers who provide them with easy and ready-made solutions and codes in GitHub. 

8. The ability of Caching:

The open-source runtime environment of the Node.js provides the ability to cache a single module. The entire request for the first modules gets cached in the application memory.

9. Support for Commonly Used Tools:

With Node.js, developers get extended support for various commonly used tools. If you want to test the source code of Node.js application, you can do it by using Jasmin and other such testing tools.

Similarly, if you want to install or identify the project dependencies, you can make use of npm, which is a powerful package manager. 

10. Handles Requests Simultaneously:

Node.js provides the option of non-blocking I/O systems. It helps you to process several server requests simultaneously.

Node.js system can handle the concurrent requests better than Ruby or Python. The incoming requests get lined up and are addressed quickly and systematically.

Disadvantages of using Node.js
Disadvantages of using Node.js

1. API is not stable:

One of the key problems that developers encounter while working on Node.js is the Application Programming Interface keeps on changing in frequent intervals and does not remain stable.

At times, you will see a new API with multiple backward-incompatible changes. As a result, developers are obliged to make changes in the accessible code bases to remain in tune with the latest version of Node.js API.

2. Library Support System is not strong:

Compared to other languages, Javascript does not have a robust and well-equipped library system.

The result is that users are forced to take support from the commonly available library for executing tasks such as processing of the handling database operations, Object-Relational Mapping, XML parsing, etc.

This makes it difficult for developers to implement common programming tasks using Node.js.

3. Asynchronous Programming Model:

If you want to boost the scalability of the application, the requirement is that the application should adopt an asynchronous programming model.

However, developers find this model to be more difficult as compared to linear blocking I/O programming.

Another disadvantage of the asynchronous programming model is code becomes clumsy and programmers are required to be dependent on the nested calls.


Node.js offers a lot more advantages to developers than its disadvantages. Moreover, it has extended the area of Javascript application and can be employed for both frontend and backend servers.

With the progress of time, more and more business is adopting Node.js and ended in getting positive results for their business.

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