Function isValidStrList

Returns true if the input is a string array or comma-separated string, whose elements are valid according to the validator function.

  • isValidStrList<T extends string = string>(
        value: unknown,
        checkFn: (value: string) => value is T,
        allowEmpty?: boolean,
    ): value is CommaSeparatedStr<T> | T[]

    Type Parameters

    • T extends string = string

    Parameters

    • value: unknown
    • checkFn: (value: string) => value is T
    • allowEmpty: boolean = true

      If false, then input without any entries is considered invalid.

    Returns value is CommaSeparatedStr<T> | T[]

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