11 lines
356 B
JavaScript
11 lines
356 B
JavaScript
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import * as React from 'react';
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export default function useMemo(getValue, condition, shouldUpdate) {
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var cacheRef = React.useRef({});
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if (!('value' in cacheRef.current) || shouldUpdate(cacheRef.current.condition, condition)) {
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cacheRef.current.value = getValue();
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cacheRef.current.condition = condition;
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}
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return cacheRef.current.value;
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}
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