Function isDouble

小数かどうかを判定する

Example

isDouble(0.1); // true
isDouble("0.1"); // true
isDouble("0.1", false); // false
  • isDouble<T extends boolean = true>(
        x: unknown,
        loose?: T,
    ): x is T extends true ? string | number : number

    Type Parameters

    • T extends boolean = true

    Parameters

    • x: unknown
    • Optionalloose: T = ...

      文字列も対象にするかどうか

    Returns x is T extends true ? string | number : number

    boolean

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