8 lines
1.4 KiB
Plaintext
8 lines
1.4 KiB
Plaintext
{
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"version": 3,
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"sources": ["../src/composeRefs.tsx"],
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"sourcesContent": ["import * as React from 'react';\n\ntype PossibleRef<T> = React.Ref<T> | undefined;\n\n/**\n * Set a given ref to a given value\n * This utility takes care of different types of refs: callback refs and RefObject(s)\n */\nfunction setRef<T>(ref: PossibleRef<T>, value: T) {\n if (typeof ref === 'function') {\n ref(value);\n } else if (ref !== null && ref !== undefined) {\n (ref as React.MutableRefObject<T>).current = value;\n }\n}\n\n/**\n * A utility to compose multiple refs together\n * Accepts callback refs and RefObject(s)\n */\nfunction composeRefs<T>(...refs: PossibleRef<T>[]) {\n return (node: T) => refs.forEach((ref) => setRef(ref, node));\n}\n\n/**\n * A custom hook that composes multiple refs\n * Accepts callback refs and RefObject(s)\n */\nfunction useComposedRefs<T>(...refs: PossibleRef<T>[]) {\n // eslint-disable-next-line react-hooks/exhaustive-deps\n return React.useCallback(composeRefs(...refs), refs);\n}\n\nexport { composeRefs, useComposedRefs };\n"],
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"names": []
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}
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