javascript When should I use Redux in my react application?

Redux allows individual components to connect to the store. In this example, the useReducer hook is used to manage the state of a simple counter component. The dispatch function is used to send actions to the reducer, which updates the state accordingly.

Redux actions and reducers can create some extra boiler plate so it’s good to have a standard set of criteria on when to use it. Before we get carried away let’s expand on this a bit more. Technically speaking, people were build big fancy complex React apps before Redux came along. Component after component has to pass pieces of the state that it doesn’t care about down because some great-great-grandchild needs it.

Large, Scalable Applications

However, Redux also comes with a learning curve and adds an extra layer of complexity to an application. In addition, it can result in a lot of boilerplate code, which can be overwhelming for developers new to the library. In this article, we will explore the reasons why you may not need to use Redux in your React application and what alternatives you can use instead. Redux is a popular state management library often used in conjunction with React.js applications. It allows for the management of a global state object and provides a centralized store for application data.

If you’re going to use Redux you should know how functional programming works. Redux was built on the principles of functional programming and understanding functional programming concepts will give you insight on how Redux operates the way it does. Since Redux doesn’t allow your application to make changes to the state and uses dispatch() to do that instead.

Redux Toolkit Membership Site Example

Defining this property in the state makes it a special variable. If the component you’re working on doesn’t meet any of these criteria, then setState would likely do just fine. Redux really just becomes a tool to use in the right situation. Introducing React Query, a library designed to streamline data fetching.

That way, there's fewer new concepts to learn at once, and it's more clear what concepts are part of React and what concepts are part of Redux. You'll also have a better understanding of how using Redux fits into a React app, and why Redux can be useful. Hence, if the initial state was 12, after the action to increment it by five gets dispatched and processed, we get the new value of the state, i.e., 17. We’ll be implementing a similar example to the login component above but this time in Redux.

Redux reducers

Unlike Redux, which is a client-state library, React Query operates as a server-state library, overseeing asynchronous operations between your server and client. “Redux is used in 55% of React apps and is going to be around for a long time”. Besides being used extensively by companies like Uber and Twitter, Redux has also been implemented successfully on projects such as WordPress.

In some cases, the added complexity and boilerplate code required by Redux may not be justified for the needs of the project. That’s where Redux saves the day for you; it eases the complexities that spring up in such applications. If you’ve got some experience in React, you’ll know that React’s data flow is such that parent components pass down props to child components. In addition, both the context API and the useReducer hook are generally easier to understand and work with than Redux.

We don’t just write about Redux, we talk about it too. Listen now:

This works well for applications with few components, but as an application grows larger, managing states shared across components becomes a hassle. Some developers argue that Redux introduces unnecessary boilerplate, potentially complicating what are otherwise simple tasks. However, this depends on the architectural decisions of the project. It is important to carefully consider what is redux and why it matters the needs of your particular application before choosing a state management solution. It may be best to start with a simpler solution like the context API or the useReducer hook and only add Redux if it is truly necessary for the project. In any case, it is always good to be aware of the alternative options available and to be able to weigh the pros and cons of each.

Explore how Superglue and Hotwire revolutionize frontend development with HTML over the wire, enhancing performance, flexibility, and ease of use. I know it's a dumb question but please i need a clear idea on when to use redux ... I learned about it a little bit but i still can't figure why would i use it and what it should replace if i use it. A community for discussing anything related to the React UI framework and its ecosystem. Join the Reactiflux Discord (reactiflux.com) for additional React discussion and help.

What is Redux used for?

The useReducer hook is similar to a reducer function in Redux, in that it allows a component to handle state changes through the dispatch of actions. However, it does not require the setup of a centralized store like Redux. In addition to the added complexity and boilerplate code, Redux can also result in performance issues if not used carefully. This can lead to unnecessary re-renders and reduced performance if not handled properly.

• The state is also immutable, which makes it possible to implement difficult tasks like infinite undo and redo.
• It is needed when each of these components want to access a shared state.
• This is a perfect time to pull the shopping cart state of our Checkout component up into Redux.

One simple answer to this question is that you will organically realize for yourself when you need Redux. If you’re unsure about whether you need it, you probably don’t. This usually happens when your app grows to a scale where managing app state becomes a hassle and you start looking for ways to make it simplify it.

One of the main drawbacks of using Redux is the added complexity it brings to an application. For smaller or simpler applications, the React context API or the useReducer hook may be sufficient for managing the state. These alternatives offer a way to manage state within a React component without the need for a centralized store like Redux. A common question many people have when using the Redux state management library with React is when to start using it. The tendency is to use it all the time at first, but in my experience this approach is a little excessive.