Optional Arguments
When arguments are given default values, they become optional
constants can be used
class Logger
{
//using Named argument requires static constant variable...
//..... const is static, so its redundant to use static
//static string DefaultSystemName = "EmployeeTracker";
const string DefaultSystemName = "EmployeeTracker";
//priority type & system that throws log msg
public static void Log(string msg, string system = DefaultSystemName, int priority=1)
{
Console.WriteLine("System: {0}, Priority: {1}, Msg: {2}", system , priority, system);
}
}
Named Arguments
Name arguments can be used in cases where a placeholder is needed for multi-argument methods with optional arguments
public static void Log(string msg, string system = DefaultSystemName, int priority=1)
where msg & priority will be assigned, but system will use default value
Logger.Log("Tracker has started");
Logger.Log("Using msg & priority", priority:0);
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