private static Employee GivePromotion(Employee employee, double rate)
{
return(employee.With(
salary: employee.Salary *(1 + rate),
role: EmployeeAppHelpers.NextRole(employee.Role)
));
}
private static Employee GivePromotion(Employee employee)
{
employee.Salary *= (1 + RAISE_RATE);
employee.Role = EmployeeAppHelpers.NextRole(employee.Role);
return(employee);
}