![]() ![]() The connect() API overrides React’s internal context and renders with a new value. Stale Props and “Zombie Children”: connect() API has an inbuilt Subscription class to ensure that connected components only receive store update notifications when the nearest connected ancestor has been updated.Some things to keep in mind when using them include: Redux Hooks (useSelector, useDispatch) vs connect() APIĪccording to React-Redux’s official documentation, it is recommended that you use React-Redux hooks by default however, there are some cases where the connect() API implements a feature better due to its maturity. Unzip the project folder, navigate to it in your terminal, and run the command below to set up its existing npm packages: You will build a counter app for this article and implement the useSelector hook. The significant difference between them is that mapStateToProps passes down multiple values as props, while useSelector takes the current state as an argument, returns the required data, and stores the returned value as a single variable instead of a prop. It subscribes to the Redux store, runs your provided function after each dispatch, and rerenders the component based on updates to the state. The useSelector hook is similar to mapStateToProps. With the advent of hooks, the React team created useSelector, useDispatch, and other custom hooks that make it easier to work with React-Redux and replace the connect() API. As an object, it contains action creators that turn to props that automatically dispatch actions when called. As a function, it receives dispatch as an argument and returns an object of functions that dispatch actions. mapDispatchToProps: It can be a function or an object. ![]()
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