react-use/docs/usePromise.md
2019-03-15 15:14:00 +01:00

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# `usePromise`
React Lifecycle hook that returns a helper function for wrapping promises.
Promises wrapped with this function will resolve only when component is mounted.
## Usage
```jsx
import {usePromise} from 'react-use';
const Demo = ({promise}) => {
const mounted = usePromise();
const [value, setValue] = useState();
useEffect(() => {
(async () => {
const value = await mounted(promise);
// This line will not execute if <Demo> component gets unmounted.
setValue(value);
})();
});
};
```