Node.Js Web App Development: Advantages and Disadvantages


JavaScript is undoubtedly the most popular client-side programming language and has proven itself to be a handy customer when it comes to cross-development platforms. Currently Node.js is a JavaScript run-time environment that helps in execution of code server-side. It operates on a single threaded event based loop to make all executions non-blocking. Here we have discussed a few pros and cons of the javascript web application development, regarding Node.js used as server-side programming.

Advantages of Node.js

  1. Easy scalability

The  application can be scaled horizontally as well as vertically. This is one of the most important & convenient features of Node.js that is worth mentioning. It can be scaled in a horizontal manner by adding extra nodes to existing system. Moreover Node.js provides you with the feature of adding additional resources to the single nodes when you are scaling the application in a vertical direction. In other words, the nature of Node.js is highly scalable and is preferable over other JavaScript servers.

  1. Easy Nature

JavaScript is counted as perhaps the most popular programming language and hence maximum front-end developers prefer learning JavaScript and focus on getting a good grasp over it. As a result, when it comes to learning Node.js at back-end, it becomes a piece of cake. This happens owing to the easy nature of Node.js and also the lesser time taken to work with it.

  1. Single Programming Language

You get to write the server-side applications in the JavaScript which is a huge advantage. It allows developers to work the front-end as well as back-end web application with a runtime environment. Since almost all web browsers support JavaScript, deploying web applications using Node.js becomes convenient. It does not call upon the use of any other server-side programming language.

  1. Fullstack JS

Owing to its full-stack JavaScript attributes, it can suitably serve the client as well as the server-side applications. It means there is further need for hiring different sets of developers for the back-end and front-end development. Thus it helps in cutting down the time factor and reduces expenses.

  1. High-Performance Delivered

Node.js translates the JavaScript code with the help of Google’s V8 JavaScript engine. The V8 compiles the code directly into machine code, thus enabling a faster and easier implementation of the code in an effective manner. Moreover, the rate of code execution is increased by the runtime environment. This is because it backs up the non-blocking I/O operations.

  1. Advantage of Caching

Due to its open-source runtime environment, Node.js provides the facility of caching modules. In this way, whenever there is a need for the first module, it is cached in the application memory. This helps the developers to load web pages faster and respond more quickly to commands, without having to re-execute codes.

  1. Develop apps of your choice

Unlike Ruby and Rails which impose several guidelines and restrictions, Node.js allows you to develop apps and software as you wish. The choice of creating something new remains with you and so does the freedom of building anything from scratch.

  1. Support for commonly used tools

While using Node.js, developers get extended support for the most commonly used tools. If you wish to test the source code of Node.js application, you can do it with the help of Jasmin or similar other unit-testing tools. Similarly, if you wish to identify or install project dependencies, you may utilize npm- a popular package manager software. You get to use grunt for task running of the project.

Disadvantages of Node.js

  1. Unstable API interface

The most important difficulty posed by Node.js is that the application programming interface (API) is not that stable. It continuously changes. There are times when a new API with backwards-incompatible changes surface and developers are compelled to change the accessible code bases to match with the latest Node.js API version.

  1. Absence of a good library

It is not equipped with a well-stacked library as compared to other programming languages. Hence users are forced to rely upon a common library for executing tasks like Object-Relational Mapping (ORM), image processing, handling database operations etc.

  1. Asynchronous Programming Model

Node.js is an asynchronous  programming model and that makes it very scalable (as mentioned before) . However, compared to the linear blocking I/O programming, most developers find the Node.js programming model more difficult.

Inspite of a few hitches, the Node.js comes in more handy than most other programming languages. It’s biggest pro is that it can be used for front-end as well as back-end servers. Business organizations and enterprises have to come rely on Node.js over time with positive feedback and enhanced results.

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