If I have to determine what is React then I would suffice that it is a popular front-end library that helps developers build feature-rich and interactive sites with both less time and effort.
But some experts in the industry warn professionals against using this library for app development because of some of its serious drawbacks. And that led to the debate about whether ReactJS is a good choice for software development or not.
Hence, in this article, we’ll take a look at some of the pros and cons of ReactJS. So you can decide for yourself if ReactJS is the right choice for your business or not.
Advantage of ReactJS
ReactJS also provides an effective way of handling styling of your components with CSS properties like classes or ids which can be applied dynamically while building your application or even while testing it.
Easy to Learn and Use
ReactJS is also powerful. React makes it easy to build complex UIs without worrying about the complexity of managing browser rendering or handling events. You can focus on the business logic, not how your app will look on different browsers or platforms.
ReactJS makes it easy to build components that are reusable across your site or application. This is done by reusing the same components over and over again, even if they’re not in use on any given page or screen.
For example: if you have a button that you want to use throughout your whole app, you can put it inside of a <Button> component, which will allow you to reuse it anywhere else in your app without having to create new versions of that component for each place where you want it used (e.g., different sizes of buttons).
The Support of Handy Tools
Another great tool that ReactJS provides is the state management library called Redux. Redux helps manage the application state by giving you two-way data binding between your components and actions. You can also use redux-thunk middleware to perform asynchronous actions asynchronously, which is very useful for performing server-side rendering (SSR).
Finally, React also provides a set of libraries called react-native which lets you develop mobile apps using native tools like Xcode or Android Studio while keeping them consistent with React patterns.
Scope for Testing the Codes
The scope for testing the codes is wider in ReactJS. A component can be tested at multiple levels. There are two main approaches to testing a component:
- Test the component’s behavior.
- Test the component’s state and props.
You can use Mocha or Chai to test your ReactJS codes. ReactJS enables you to create a component, add it to your parent component, and test it without any initial setup. This makes it perfect for unit testing and integration testing.
With ReactJS it’s very easy to debug your application because of its virtual DOM. You can use the developer tools to see how the application looks in real-time and also make changes to the code without breaking anything.
It’s also very fast when it comes to rendering new elements on the screen, which makes things faster so you don’t have to wait too long for things to work properly.
Disadvantage of ReactJS
The high pace of development
The ability to use ES6 and ES7 features such as classes, arrow functions, and modules may not be available in the version of Node used by your team (which will typically be 6 or 8). This can make building code for ReactJS harder than it needs to be.
Another downside of React is that it doesn’t have good documentation. While there are plenty of resources online to help you get started with React, its API is still relatively new and undocumented compared with other libraries like Angular or Vue.js.
This can be very frustrating when you’re trying to build something complex and you’re not quite sure where to start. That being said, if you’re willing to put in the time and effort, there are many resources available on the Internet to help you get up and running with React quickly.
JSX as a barrier
The problem is that JSX (and ES6 classes) are easy to misuse. They let you express complicated structures easily, but they also make it easy to write code that’s hard to understand or maintain. You can end up with long chains of blocks that look like HTML and don’t do anything important.
Problems with SEO
ReactJS, being a frontend framework, has some disadvantages when it comes to SEO. Here are some of them:
There is no built-in support for URL rewriting or canonicalization. As a result, all URLs will be rewritten in a non-canonical way, which can cause PageRank loss.
In ReactJS, there is no support for server-side rendering (SSR), so if the user requests data from the server (e.g., using Ajax), then it will be sent to the client without any processing and be rendered by ReactJS directly instead of being processed on the server before rendering on the client.
Flexibility and Lack of Conventions
The main convention in ReactJS is that components are rendered on the DOM by using JSX. Components are meant to encapsulate logic and make them reusable. They often contain one or more child components that represent a smaller chunk of logic within the component. For example, if you have a Facebook login component, it might contain an authentication component as well as an error component that displays when there is an error during authentication.
This same pattern can be applied to your codebase by creating separate files for each component type (e.g., login, login_form). You might even have separate files for stateless and stateful components if those are different enough in their behaviors (e.g., login_form).