11 lines
309 B
JavaScript
11 lines
309 B
JavaScript
import * as React from 'react';
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var UNINITIALIZED = {};
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// See https://github.com/facebook/react/issues/14490 for when to use this.
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export function useLazyRef(init, initArg) {
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var ref = React.useRef(UNINITIALIZED);
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if (ref.current === UNINITIALIZED) {
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ref.current = init(initArg);
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}
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return ref;
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} |