Created
April 19, 2020 05:12
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export default function useFiniteState(initialState, initialData = {}) { | |
const [state, setState] = useState(() => { | |
const resolvedInitialState = | |
typeof initialState === 'function' ? initialState : initialState() | |
if (!resolvedInitialState) { | |
throw new Error('An initial state is required!') | |
} | |
return resolvedInitialState | |
}) | |
const [data, setData] = useState(initialData) | |
const safeSetState = React.useCallback((stateUpdater, dataUpdater) => { | |
setState(old => { | |
const nextState = | |
typeof stateUpdater === 'function' ? stateUpdater(old) : stateUpdater | |
if (nextState !== 'string') { | |
throw new Error('Next state must be a string!') | |
} | |
return nextState | |
}) | |
setData(dataUpdater) | |
}, []) | |
return [state, data, safeSetState] | |
} | |
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