Function findByPrefixIfUnique

  • findByPrefixIfUnique(
        prefix: string,
        keys: readonly string[],
    ): undefined | string

    given a potentially partial prefix like hell, this finds the matching name in the map, but only if it is unique!

    Parameters

    • prefix: string
    • keys: readonly string[]

    Returns undefined | string

    Example

    findByPrefixIfUnique('hell', { 'hello', 'bar' }) // => 'hello'
    findByPrefixIfUnique('hell', { 'hello', 'hell' }) // => 'hell' (full match)
    findByPrefixIfUnique('h', { 'hello', 'hell' }) // => undefined (not unique)
    findByPrefixIfUnique('', { 'hello', 'hell' }) // => undefined (empty prefix)

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