| 1 | import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
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| 2 | import * as React from 'react';
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| 3 | export default function useSyncState(defaultState, onChange) {
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| 4 | var stateRef = React.useRef(defaultState);
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| 5 |
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| 6 | var _React$useState = React.useState({}),
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| 7 | _React$useState2 = _slicedToArray(_React$useState, 2),
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| 8 | forceUpdate = _React$useState2[1];
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| 9 |
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| 10 | function setState(updater) {
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| 11 | var newValue = typeof updater === 'function' ? updater(stateRef.current) : updater;
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| 12 |
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| 13 | if (newValue !== stateRef.current) {
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| 14 | onChange(newValue, stateRef.current);
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| 15 | }
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| 16 |
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| 17 | stateRef.current = newValue;
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| 18 | forceUpdate({});
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| 19 | }
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| 20 |
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| 21 | return [stateRef.current, setState];
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| 22 | } |
| \ | No newline at end of file |