props down to child components or using callback functions to send data back up to a parent.
At first glance, it might seem somewhat confusing to use Redux in a React application.
Why would you need to add more state to your application, or use another tool to help manage that state?
React is great, and it’s entirely possible to write a complete application using nothing but React. However, as an application gets more complex, sometimes it’s not as straightforward to use plain old React.
Using a state management library like Redux can alleviate some of the issues that crop up in more complex applications.
If you read about Redux, you’ll see several benefits that are commonly discussed:
- • Predictable state updates make it easier to understand how the data flow works in the application
- • The use of "pure" reducer functions makes logic easier to test, and enables useful features like "time-travel debugging".
- • Centralizing the state makes it easier to implement things like logging changes to the data, or persisting data between page refreshes
In addition to those general benefits, Redux provides various advantages to maintaining state in a React application.
Building a React or React Native application in the real world can become complex if there is not a proper way to handle data. If at any point the data is not managed, things will get out of hand. If you are familiar with React or React Native, you know the default way of handling data is to keep it in a component state and pass it to children components as props.
State and Props are the only two ways to control data in a component. Props is short for properties. It is a simple rule to follow in the React world that we should not mutate or change the value of props. In React, the flow of data is unidirectional or one way. That is, the data can always be passed from a parent to a child component.
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