The Role of Redux in React JS Web Development
With the rapid advancements in the web development world, you have access to a number of tools and libraries. However, it’s not the right approach to jump on every newly released library without understanding and utilising its features completely. Although Redux is not a new library, still, it remains quite popular in React JS Web Development. It is the most popular javascript library used along with React for building user interfaces (UI) for javascript apps.
From small startups to well-recognised enterprises, most companies are choosing Redux, and are hiring a React JS Web Development Company for the same. Hiring React JS development services, allows them to delegate web development to professionals and save both money as well as time.
This write-up will give you the proper insight into the role of Redux in React JS web development. We will start with what it is, why it needs to be used, and what are the benefits of using it.
Contents
What is Redux?
Redux is a JavaScript data store library that helps to store the state of the application in one place called the Redux store. It allows the React component to access the app state from the store and change it at any time. Also, Redux makes the state predictable and allows tracing any state of the application.
Why Redux With React JS?
Nowadays, React JS has become a widely used web platform for building user interfaces for both mobile and web development. However, as the user base of any application grows, it becomes challenging to maintain data flow. Here, Redux (an open-source JavaScript library) comes into the picture for managing application state and organising data flow.
Redux is an open-source standalone library that helps to write javascript applications across client, server and native environments. It provides a centralised store for the app state (data), which makes it easier to manage and maintain generated or modified data.
Redux helps to easily test and debug the code which makes the application traceable and predictable at any state. While Redux is mostly used with React, it can also be used with other frameworks such as Angular, Angular 2, Vue, Mithril, etc.
What Are The Benefits Of Using Redux With React JS?
Here are some of the benefits of using Redux with React JS.
Centralised Store:
In Redux, the app state is stored globally in the data store, which makes it easy for all React components to access data. This makes data centralised and simplified for the React components to get the app state at any time. That’s why, using Redux with React JS is helpful for developers & designers to develop large-scale applications smoothly.
Performance Optimization:
Redux javascript library is optimised to eliminate unnecessary re-renders. These re-renders happen when React tries to update the application with new data. Thankfully, Redux ensures that the application only re-renders when data actually has changed through any user action. This way, Redux improves the performance of the javascript application.
Pure Function:
Redux reducer is a pure function, which means it does not alter the data (input) given while generating outputs. This means, in Redux, the function returns the same value for the same input. Let’s understand, Redux takes input (state/object/data) and passes it to each reducer. If there is any change, a new input (modified object) is returned from the reducer (re-rendering). However, if there is no modification, the old object (unmodified) is returned from the reducer.
Long-Term Data Storage:
In Redux, data is stored for a time until a web page or application page is refreshed. This feature makes this JavaScript library build complex and large-scale applications. Here, long-term data storage activities include loading data from an API or data submitted through a form etc.
Time-travel Debugging:
Redux provides access to the entire application state at any time, making it easy to debug the code and understand how it’s working. Redux provides time travel debugging features. This means Redux makes it possible to step back (rewind) and understand what is happening when you run your application. Furthermore, it will help to debug the code.
Community Support:
Redux has a large community of users, which makes it easier to look for assistance to learn about the best practices of programming. Such a community of users support you when you are stuck in between while designing UI. Furthermore, you can use your acquired knowledge in designing different applications.
Simple Testing Code:
Since all the data is stored in a single place, it becomes easy to test the application. Plus, code written in Redux is using pure functions (reducer), which makes it simple to write unit tests and integration codes for testing.
Predictable States:
State changes are predictable in Redux. This means if the same app state is passed to the reducer (function) as input, the same result will be returned from the reducer. As Redux uses pure functions to pass the values (state), saves you from data inconsistency, which makes debugging easy and simple.
Reusable Code:
Redux is based on functional programming and a simple code can be written through functional programming. As the written codes are smaller, simple, and isolated functions, it becomes easy to test, maintain and debug the code. Furthermore, the app state is stored globally in the Redux store. This means any modification done to the function can be copied and pasted anywhere.
How Redux Works with React JS?
Redux provides a centralised store for the state of the React JS application. The state of the application is stored in a JavaScript object called the store. The object is then passed down to each React component using the Provider component from the React-Redux library. These components can then access the application state from the data store using the useSelector hook.
When a component needs to update the app state, it triggers an action to the store. Here, action is a simple JavaScript object or function that contains the change or modification of the app state. The Redux store then calls a reducer function which takes the current state and the action as input and returns a new state as an output.
The new state is then stored in the store, and the components that depend on that state are re-rendered (updated). This process of sending an action, calling a reducer function, and updating the state is called a Redux loop.
The Final Words:
Redux is a stand-alone state management tool to manage and centralise the javascript application state, which is also termed a predictable state container.
Now, you know about all the technical benefits of using Redux with React JS. However, it’s better to choose a professional team and let them design your user interface for JS apps. So, If you are looking to hire a React developer in Singapore, search React JS development Singapore near me and find experienced & reputable companies. The professionals can better assist you in your React JS web development project.
