Redux vs Context vs Local Component State

There are three core components in Redux — actions, store, and reducers. This is important because they help you understand the benefits of Redux and how it can be used. Redux has a strict unidirectional data flow, which makes it easier to understand how data moves through your application. This can be especially helpful when working on large, complex projects.

Same as in Redux, it has to wrap components that will access its state. The problem with the lack of separation of data and presentation, illustrated above, is that the state is tied to what is displayed on the screen. Suppose the code fragment responsible for rendering the input and the button had to be moved to another place in the application.

It is the Official Redux UI Bindings for React​

Later on, the caller can resume the generator at the statement following the yield. Anyway, redux-saga is not more difficult and complex than redux itself, and it does not have a so-called steep learning curve because it has well-limited core concepts and APIs. Spending a small amount of time learning redux-saga may benefit yourself one day in the future.

Redux simply provides a subscription mechanism which can be used by any other code. PocketBase is a performant Go-based tool that comes with essential features like user auth, file uploads, access control rules, and more. One major benefit of Redux is the ability to navigate through the state’s history, allowing developers to observe how the state has changed throughout the app’s lifecycle.

Redux actions

I.e. they have control when to listen for some action, and when to not. In the above example the flow instructions are placed inside a while(true) loop, so it’ll listen for each incoming action, which somewhat mimics the thunk pushing behavior. Note we’re mocking the api call result by simply injecting the mocked data into the next method of the iterator. Before I wrap my head around it, I would like to know the pros/cons of using redux-saga instead of the approach below where I’m using redux-thunk with async/await.

In the above code, the state variable text is set to the initial state (color) using useState(). The setText function is set to update the value of color when the button is clicked. In React, you have access to various other hooks that you can import and use in your applications. UseState() introduces state management capabilities in functional components.

What is Redux?

In the ever-evolving world of web development, new JavaScript libraries are always being released. But chasing after each new release without fully understanding their benefits isn’t a good idea. 15+ years managing app processes, workflows, prototypes, and IoT innovation and hardware for over 500 projects. In the context of an application, state refers to the data or variables that determine the behavior of the application and the information shown to the user.

If you are interested in web development, you might wonder, what is Redux? Redux is a popular JavaScript library used primarily as a state management tool. Context looks very appealing what is redux used for in its ease of use compared to Redux, however, there are some advantages that Redux has over the Context API. Actions are then intercepted by reducers for further processing.

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Using Redux with ReactJS brings several advantages to your application development process. It offers centralized state management, predictable state updates, efficient component communication, scalability, and benefits from a thriving ecosystem and community support. By combining the strengths of ReactJS and Redux, you can build robust, maintainable, and scalable applications with ease. Redux can be a powerful tool for managing state in React applications, but it also has its downsides.

• It also provides examples of each type of middleware to help you understand how they work and how they can be used to build more powerful and complex applications.
• Now dispatch is responsible for dispatching actions that are then handled by their corresponding reducers.
• This is why a state management solution like Redux is valuable to developers.
• Spending a small amount of time learning redux-saga may benefit yourself one day in the future.

Next, check to make sure that Redux has been added to your dependencies. It contains important information about the packages used in your project. And it’s not something you’ll use only in React.js, but also in other popular tools like Angular.js, Vue.js, and Next.js. In this example, we are passing options to the createLogger function to collapse log messages, show durations and timestamps, and more. You can find more information about the available options in the official documentation. This is just a basic example of how you can use Redux Saga to make an API call and update the state of your app with the data.

However, there are tools and libraries available that can help simplify this process, such as Redux Toolkit. Redux was specifically designed to work well with React, and it has a small and simple API that is easy to learn and use. You can use the React-Redux library to connect your components to the Redux store and update the state when needed. This makes it easy to build scalable and maintainable React applications. Context has its advantages – it does not require the entire boilerplate of Redux.

While it is possible to write this logic by hand, doing so would become very repetitive. In addition, optimizing UI performance would require complicated logic. This allows you to persist the state of the store across page refreshes and sessions. In this example, the reducer simply updates the users field in the state with the data from the action.

Redux is maintainable

Reducers are pure functions that take the store’s current state and an action and return a new state. This pure function is responsible for changing the state of the store. Actions are responsible for providing the information reducers need to make these changes. While Redux is a package-based way of storing the data globally, there is also another technique of doing it in pure React. An alternative way to store data globally is to keep it in a Context. It allows the creation of multiple stores of data that can be shared by components.