Function hasValue

  • Check if map has a value.

    Type Parameters

    • K

    • V

    • W = V

    Parameters

    • x: Map<K, V>

      a map

    • v: V

      search value

    • fc: CompareFunction<V | W> = null

      compare function (a, b)

    • fm: MapFunction<K, V, V | W> = null

      map function (v, k, x)

    Returns boolean

    [*, v] ∈ x?

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