Maofeng
31 lines
962 B
TypeScript
31 lines
962 B
TypeScript
import { get } from "es-toolkit/compat"
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import type { ExtractRecordPaths, RecordPathValue, RecordValue } from "./types"
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import { useRecord } from "./use-record"
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export type UseFieldValueOptions<
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TRecord extends RecordValue = RecordValue,
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TSource extends ExtractRecordPaths<TRecord> = ExtractRecordPaths<TRecord>,
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> = {
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defaultValue?: RecordPathValue<TRecord, TSource>
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record?: TRecord | null
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source: TSource
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}
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/** Reads a direct or nested field from a record override or context. */
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export function useFieldValue<
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TRecord extends RecordValue = RecordValue,
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TSource extends ExtractRecordPaths<TRecord> = ExtractRecordPaths<TRecord>,
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>({
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defaultValue,
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record: fallbackRecord,
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source,
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}: UseFieldValueOptions<TRecord, TSource>):
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| RecordPathValue<TRecord, TSource>
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| undefined {
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const record = useRecord({ record: fallbackRecord })
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return get(record, source, defaultValue) as
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| RecordPathValue<TRecord, TSource>
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| undefined
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}
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