Instead, you will be calling functions that return actions, and these functions are popularly known as action creators. Here is the action creator for the increment action that we discussed earlier. For instance, in the example above, the type property is set to “INCREMENT”, and an additional payload property is included. You could rename the payload property to something more meaningful or, in our case, omit it entirely.

We can help you deliver your product faster with an experienced remote developer. But there are many cases where you won’t need redux, it’s important to understand what it does, and why you would need it. If you’re building a house, you probably don’t need a jackhammer even if you’ve learned how to use it. State management using setState is bloating the component.

A cautionary exploration of how a lack of intentional composition can impact your React project

It’s not an easy task to manage each component’s state while sharing it with many other components. You’ll likely experience data inconsistency bugs, a fearsome nightmare for frontend developers. Many people get confused about when to use Redux in their projects. The use of Redux is needed when your application grows and managing the app’s state becomes cumbersome. This is the time when the developers tend to search for tools and libraries that can scale their applications easily and manage the state of each component. Redux helps you to separate the application state from React.

• Just as all rivers lead to the ocean, the data in a Redux application flows in one direction to lead to the store.
• If you want to learn how Redux works internally and dive deep into the library, consider checking out Dan’s free course.
• In Redux terms, the type value tells the reducer what we want to do.
• If a function tries to write a value into a variable that exists outside the function or tries to call an external method, then you can safely call these things side effects.
• Imagine a pyramid structure of seven components where each component as two child components.
• But hopefully it also settled each piece of Redux in your understanding – at least a little bit.

From our analogy, this is the part where you put your money and deposit slip in the tube, preparing to send it to the teller. The next time you check your balance, you’ll see that your information has been updated. Rahul Panchal is a Founder and Managing Director of Rlogical Techsoft Pvt. Ltd, a web & mobile app development company India specialized in Hybrid, Native, Android and iOS App development.

React Redux

Redux solved state management concerns in large React applications. The point is that the industry is treating Redux as if it is synonymous with React, and you need to know Redux to code React applications. If you want to add Redux to your React app, you’ll need to use the official React Redux binding library provided and maintained by the Redux team.

So before you dive into the world of advanced state management (e.g. Redux), consider using the tools React ships with out of the box. The modern React context API is simpler, more efficient than before and comes why redux with hooks support. In most cases, wrapping your application state in a context is all you need to access it anywhere in your app. You don’t need Redux if your application’s state is easy to manage without it.

Checks for Understanding

The most common usage is with React and React Native, but there are bindings available for Angular, Angular 2, Vue, Mithril, and more. Redux simply provides a subscription mechanism which can be used by any other code. That said, it is most useful when combined with a declarative view implementation that can infer the UI updates from the state changes, such as React or one of the similar libraries available. It’s important to understand the kind of application you’re building, the kinds of problems that you need to solve, and what tools can best solve the problems you’re facing.

However, it will not always be required to manage your application’s state. If performance happens to be a concern, the most effective way to enhance performance will be to skip unwanted re-renders such that components re-render only when their data has been modified. Lots of performance optimizations are implemented by React Redux internally such that your component re-renders only when it is imperative to do so. Being React’s official Redux binding, React-Redux is updated with any modifications in API from both libraries to make sure that the React components behave expectedly.