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Resource Hooks

Resources can be accessed by a component without having them as part of their state. For example, a component can read a message from a Promise or read styling information from a context.

To read a value from a resource, use this Hook:

 function MessageComponent ( { messagePromise } ) { 
 const message = use ( messagePromise ) ; 
 const theme = use ( ThemeContext ) ; 
 // ... 
 }
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Built-in React Hooks – React
ets you mark a state transition as non-blocking and allow other updates to interrupt it. useDeferredValue lets you defer updating a non-critical part of the UI and let other parts update first. <span>Resource Hooks Resources can be accessed by a component without having them as part of their state. For example, a component can read a message from a Promise or read styling information from a context. To read a value from a resource, use this Hook: use lets you read the value of a resource like a Promise or context. function MessageComponent({ messagePromise }) { const message = use(messagePromise); const theme = use(ThemeContext); // ... } Other Hooks These Hooks are mostly useful to library authors and aren’t commonly used in the application code. useDebugValue lets you customize the label React DevTools displays for you


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