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?
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.
- It runs in a single thread with a callback concept.
Advantages of Node.js
Here are the advantages of using Node.js as server-side programming:
1. Easy to learn:
2. Supported widely by Google Chrome:
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.
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:
6. Single Programming Language:
7. Large and Active Community:
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
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:
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.
With the progress of time, more and more business is adopting Node.js and ended in getting positive results for their business.