Discover the power of React Suspense as it tackles the challenges of data fetching and loading states. Learn how to transform async functions into resources and streamline your workflow using caching strategies. The hosts delve into the importance of perceived performance and lazy loading for better user experiences. They also discuss future React features and how these advancements promise to enhance both developer and user satisfaction. Buckle up for a dive into the future of web development!
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insights INSIGHT
React Suspense: Solving Loading UI Challenges
React Suspense solves loading UI challenges by connecting data fetching location with loading display.
It offers two approaches: component-level loading or top-level application loading, passing data down.
insights INSIGHT
Data Fetching with Resources
React Suspense simplifies data fetching with resources, which convert async functions for seamless data handling.
Resources offer synchronous reads, caching, preloading, and integration with data fetching libraries.
volunteer_activism ADVICE
Suspense Component for Loading State Management
Use Suspense components higher in the component tree to manage loading states for children fetching data.
Leverage fallback prop for loaders and maxDelay to optimize fast connections, improving perceived performance.
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In this Hasty Treat, Scott and Wes talk about React Suspense — what it is, how it works, support and more!
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Show Notes
Not live yet - it may/will change. Be warned!
3:59 - The problem we have with React right now
API calls
Image loading
Code splitting
7:16 - What is React Suspense?
First we convert our async data fetching functions into resources
Resources can then be read inside render - above the return
Resources can be read from cache
Resources can be preloaded into a cache if you anticipate needing them
Resources reads are blocking for that function - you can’t return JSX until the resource is read
In your component that fetches data, there is no need to maintain a loading state
Then, anywhere higher up in that tree, you can introduce a suspense component
The suspense component can detect if any of it’s children are currently loading data
If they are, we can then choose to show a loader via the fallback prop
We can also choose to show nothing via the maxDelay prop — this is helpful for fast connections that shouldn’t see the spinner for a short split-second
15:20 - Support
React.lazy and suspense for code splitting is already here
The React.lazy function lets you render a dynamic import as a regular component
Loadable Components is recommended if you need splitting with SSR
Syntax - Tasty Web Development Treats