Rare Earth Juejin Tech Community
Jun 18, 2024 · Frontend Development
React 19 New Features: use API, Preload API, Actions, Optimistic Updates, and React Compiler
This article introduces the new React 19 APIs—including the versatile use API for data fetching and conditional context, resource preloading helpers, enhanced Actions with useTransition, useActionState, useFormState, useOptimistic, as well as deprecations, improved hydrate error messages, and the experimental React Compiler—providing code examples and migration guidance.
ReActReact CompilerSuspense
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