static void Main(string[] args)
{
UserDemo user = new UserDemo();
WriteLine($"Import Static - 'using static namespace.classname;': {StaticFunction()}, {staticAutoProperty} ");
WriteLine($"String Interpolation: {user.StringInterpolation}");
WriteLine($"AutoProperty Inline Initializer: {user.AutoPropertyInlineInitializer}");
WriteLine($"AutoGetOnlyProperty: {user.AutoGetonlyProperty}");
WriteLine($"OnelineLamdaExpProperty: {user.OnelineLamdaExpProperty}");
WriteLine($"OnelineLamdaExpFunction: {user.OnelineLamdaExpFunction()}");
WriteLine($"OnelineLamdaExpFunctionWithParam: {user.OnelineLamdaExpFunctionWithParam("Dear")}");
WriteLine($"NullConditionalOperator outmost null: {user.NullConditionalOperator(null, 0)}");
WriteLine($"NullConditionalOperator 0 count: {user.NullConditionalOperator(new Dictionary<int, string>(), 1)}");
WriteLine($"NullConditionalOperator value empty string: {user.NullConditionalOperator(user.intStringDictionary, 1000)}");
WriteLine($"NullConditionalOperator value null: {user.NullConditionalOperator(user.intStringDictionary, 1001)}");
WriteLine($"NullConditionalOperator value string: {user.NullConditionalOperator(user.intStringDictionary, 100)}");
WriteLine($"Index Initializer: " + user.intStringDictionary.Aggregate("", (keyString, pair) => $"{keyString}[{pair.Key}]='{pair.Value}' "));
WriteLine($"nameof(): {user.nameofExpression(new UserDemo())}");
WriteLine($"Exception Filter: {user.ExceptionFilter()}");
Task <string> t = user.AwaitInCatchFinally(true);
t.Wait();
WriteLine($"Await In Catch Finally: {t.Result}");
// Question:
// Exception Filters using when or if???
}
public string nameofExpression(UserDemo user)
{
return($"'nameof(user.firstName)' returns: {nameof(user.firstName)}");
}