Unlock the Power of React 18 and React Redux 8
As React 18 approaches, the React Redux team is hard at work on version 8, ensuring seamless integration with the latest features. This includes server-side rendering, transitions, and automatic batch rendering. But what does this mean for developers, and how will it impact existing applications?
Upgrading to React Redux 8: A Smooth Transition
To test the waters, let’s upgrade a simple to-do application to React Redux 8 and explore the changes. We’ll use the latest versions of React and Redux, and then inspect the application for breaking changes and unexpected behavior.
The Upgrade Process
To add React Redux 8 to an existing React application, simply run the command npm install react-redux@8. Next, update the React version to 18 by running npm install react@18. With the new root API, createRoot, React 18 runs updates more efficiently. To utilize this, navigate to the index.tsx file and replace the old code with the new createRoot API.
What to Expect
After upgrading, you’ll notice that the application functions as expected, with no breaking changes or unexpected behavior. The public APIs, connect and useSelector, remain the same, ensuring a seamless transition.
Under the Hood: Notable Changes in React Redux 8
- TypeScript Conversion: The entire codebase has been converted to TypeScript, making it easier to write type-safe code and produce bug-free applications.
- Compatibility with React 18: React Redux’s public APIs have been rewritten to support React 18, including the new useSyncExternalStore API.
- Modernized Build Output: React Redux now compiles to ES2017, taking advantage of modern browser support and producing smaller bundles.
- Removed Unused Legacy APIs: The connectAdvanced API and connect’s pure option have been removed, simplifying the package.
New Features to Expect in React Redux 8 and React 18
- Automatic Render Batching: All renders are batched, regardless of their trigger, ensuring efficient rendering.
- Server-Side Rendering: With Suspense, React 18 makes major performance improvements to SSR, allowing for asynchronous rendering and faster content delivery.
- Transitions: The startTransition API enables prioritization of urgent updates over secondary updates, ensuring a better user experience.
The Future of React Redux
With React Redux 8, existing applications are expected to function properly after upgrading. If you encounter any issues, the Redux team is taking feedback to ensure a smooth transition. Stay ahead of the curve and get set up with modern React error tracking in minutes.