@mudssky/jsutils
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    Type Alias Subtract<Num1, Num2>

    Subtract: BuildArray<Num1> extends [arr1: BuildArray<Num2>, arr2: infer Rest]
        ? Rest["length"]
        : never

    使用数组类型提取获取length实现减法 只能传入正整数

    Type Parameters

    • Num1 extends number
    • Num2 extends number

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