![]() It ensures that the behavior in your tests matches what happens in the browser more closely. We have added a new API called ReactTestUtils.act() in this release. We can’t wait to see what you’ll create next! Testing Hooks We’re excited about Hooks because they make code reuse easier, helping you write your components in a simpler way and make great user experiences. If you want, you should be able to use Hooks in most of the new code you’re writing.Įven while Hooks were in alpha, the React community created many interesting examples and recipes using Hooks for animations, forms, subscriptions, integrating with other libraries, and so on. Currently, only getSnapshotBeforeUpdate() and componentDidCatch() methods don’t have equivalent Hooks APIs, and these lifecycles are relatively uncommon. Note that React Hooks don’t cover all use cases for classes yet but they’re very close. We described our plan for the next months in the recently published React Roadmap. It will soon be included into Create React App by default. We strongly recommend enabling a new lint rule called eslint-plugin-react-hooks to enforce best practices with Hooks. They are also supported in the latest Flow and TypeScript definitions for React. React Hooks are now supported by React DevTools. React Native will support Hooks in the 0.59 release. Hooks won’t work if you forget to update, for example, React DOM. Note that to enable Hooks, all React packages need to be 16.8.0 or higher. Yes! Starting with 16.8.0, React includes a stable implementation of React Hooks for: Code using Hooks will work side by side with existing code using classes. Instead, try using Hooks in some of the new components, and let us know what you think. We don’t recommend rewriting your existing applications to use Hooks overnight. The Hooks FAQ describes the gradual adoption strategy. Hooks have no breaking changes, and we have no plans to remove classes from React. showcases community-maintained Hooks recipes and demos.Making Sense of React Hooks explores the new possibilities unlocked by Hooks.Building Your Own Hooks demonstrates code reuse with custom Hooks.Hooks at a Glance is a fast-paced overview of the built-in Hooks.Introducing Hooks explains why we’re adding Hooks to React. ![]() If you’ve never heard of Hooks before, you might find these resources interesting: You can also build your own Hooks to share reusable stateful logic between components. Hooks let you use state and other React features without writing a class. With React 16.8, React Hooks are available in a stable release! What Are Hooks?
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