| # `useGetSet` | |
| React state hook that returns state getter function instead of | |
| raw state itself, this prevents subtle bugs when state is used | |
| in nested functions. | |
| ## Usage | |
| Below example uses `useGetSet` to increment a number after 1 second | |
| on each click. | |
| ```jsx | |
| import {useGetSet} from 'react-use'; | |
| const Demo = () => { | |
| const [get, set] = useGetSet(0); | |
| const onClick = () => { | |
| setTimeout(() => { | |
| set(get() + 1) | |
| }, 1_000); | |
| }; | |
| return ( | |
| <button onClick={onClick}>Clicked: {get()}</button> | |
| ); | |
| }; | |
| ``` | |
| If you would do this example in a naive way using regular `useState` | |
| hook, the counter would not increment correctly if you click fast multiple times. | |
| ```jsx | |
| const DemoWrong = () => { | |
| const [cnt, set] = useState(0); | |
| const onClick = () => { | |
| setTimeout(() => { | |
| set(cnt + 1) | |
| }, 1_000); | |
| }; | |
| return ( | |
| <button onClick={onClick}>Clicked: {cnt}</button> | |
| ); | |
| }; | |
| ``` | |