![]() ![]() This is going to be particularly useful for those smaller components that may need access to a few fields of global state or dispatch one action by giving you the ability to hook into the store or trigger actions with two easy to learn hooks. ) export default Counter In Conclusionįollowing the huge rise in popularity of the functional component over class components since the release of Reacts hooks, I am confident the use of React-Redux hooks will flourish in the coming months.īy removing the need for component container logic, these hooks massively simplify the process of linking a component to the Redux store whilst reducing the amount of code we need to write. The first hook that we are going to look at is useSelector which allows you to access the store and extract data in a similar way to how we previously would have accessed the store with mapStateToProps. The update released by React-Redux in version 7.1.0 allows you to write connected components, without the repeated container logic, with two easy to use hooks. Its first two arguments, mapStateToProps and mapDispatchToProps enable your component to access the store and dispatch actions to the store respectively. ![]() Previously, each connected component would be wrapped in a higher-order component connect. When writing a component I generally start by considering whether the component needs to be connected to the store or if it can be a dumb component with props passed down from a parent. This massively helps ease the transition to implementing these new hooks into your existing code. const isOn useSelector(selectIsOn) This can also be done inline as well: const isOn useSelector((state: RootState) > state. When using Redux’s hooks, your initial setup of the store, actions, reducers and selectors will all work exactly the same. So when I recently found out that Redux has also added hooks to their source code, I needed to try it out, and I was not disappointed. They work in perfect harmony to give structure to your code whilst providing a platform that enables substantial app growth. React and Redux are the bread and butter for my web applications, creating a basic UI in a matter of minutes. 1 Blessing If you verified that react > 16.8.3 and react-redux > 7.1.1 try the solution below. v7.1.0 supports Hooks API and exposes hooks like useDispatch or useSelector. And then pass your function into useSelector like this: const availableMeals use Selector (getMeals(myState) ) You can put this function (getMeals) in your current component or even put it in your reducer. The hooks API consists of the useSelector, useDispatch, and useStore hooks. Functional components with hooks have largely replaced class components and now Redux has followed. What do Hooks mean for popular APIs like Redux connect() and React Router. Using the useSelector Hook in a React Redux App. Earlier this year React released hooks, shaking the codebase of developers all over the world and changing the way we write React web applications.
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