jmap-kit
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    Type Alias Decrement<N>

    Decrement: IsNegative<N> extends true
        ? never
        : BuildTuple<N> extends [infer _, ...(infer Rest)] ? Rest["length"] : never

    Utility type to decrement a number by 1

    Type Parameters

    • N extends number

      The positive number to decrement. If N is 0, it returns never. If N is a negative number, it returns never.

    The decremented number, or never if N is negative or 0.