Functional Programming, Csharp, Dotnet, Software Development.
readonly (bool IsValid, string? Error) _successResult = (true, null); public (bool IsValid, string? Error) Validate(string email) { var validationResult = _validations .Select(func => func(email)) .FirstOrDefault(func => !func.IsValid); return validationResult is { IsValid: false, Error: { Length: