public static void Start()
{
Student stud = new Student()
{
Age = 25
};
//Anonymous Method
IsAdult isAdult = delegate(Student s) { return(s.Age > 18); };
Console.WriteLine(isAdult(stud));
//Lambda Expression
//IsAdult isAdultLE = (Student s) => s.Age > 18; OR
IsAdult isAdultLE = s => s.Age > 18;
Console.WriteLine(isAdultLE(stud));
//Lambda Expression Multi Parameter
IsAdultPerCountry isAdultPerIndia = (s, minAge) =>
{
Console.WriteLine($"Student Age: {s.Age}, MinAge:{minAge}");
return(s.Age >= minAge);
};
Console.WriteLine(isAdultPerIndia(stud, 18));
}
static void Main(string[] args)
{
Func <int, int> square = x => x * x;
Console.WriteLine(square(5));
int[] numbers = { 2, 3, 4, 5 };
var squaredNumbers = numbers.Select(x => x * x);
Console.WriteLine(string.Join(" ", squaredNumbers));
Action line = () => Console.WriteLine();
line();
CalcMethod add = (a, b) => a + b;
CalcMethod subtract = (a, b) => a - b;
Console.WriteLine(add(10, 20));
Console.WriteLine(subtract(10.5, 20));
IsTeenAger isTeenAger = delegate(Student s) { return(s.Age > 12 && s.Age < 20); };
Student s1 = new Student()
{
Name = "John", Age = 18
};
Console.WriteLine("{0}은 {1}.", s1.Name, isTeenAger(s1) ? "청소년입니다" : "청소년이 아닙니다");
IsAdult isAdult = (s) => {
int adultAge = 18;
return(s.Age >= adultAge);
};
Student s2 = new Student()
{
Name = "Robin", Age = 20
};
Console.WriteLine("{0}은 {1}.", s2.Name, isAdult(s2) ? "성인입니다" : "성인이 아닙니다");
}
static void Calculate(Student s, IsAdult callBack)
{
if (s.Age > 18)
{
callBack(s);
}
// OR callBack.Invoke(s);
}
static void CalculateMultiCast(Student s, IsAdult callBack)
{
if (s.Age < 5)
{
callBack -= StudentIsNotAKid; // Bad coding style to expose delegate like
}
if (s.Age > 18)
{
callBack(s);
}
}
public override int GetHashCode()
{
int hash = 1;
if (Ret != 0)
{
hash ^= Ret.GetHashCode();
}
if (AccountId.Length != 0)
{
hash ^= AccountId.GetHashCode();
}
if (ChannelAccountId.Length != 0)
{
hash ^= ChannelAccountId.GetHashCode();
}
if (Channel.Length != 0)
{
hash ^= Channel.GetHashCode();
}
if (ChannelInfo.Length != 0)
{
hash ^= ChannelInfo.GetHashCode();
}
if (TimeStamp != 0L)
{
hash ^= TimeStamp.GetHashCode();
}
hash ^= users_.GetHashCode();
if (Addication != 0)
{
hash ^= Addication.GetHashCode();
}
if (IsAdult != 0)
{
hash ^= IsAdult.GetHashCode();
}
if (Token.Length != 0)
{
hash ^= Token.GetHashCode();
}
if (PayLink.Length != 0)
{
hash ^= PayLink.GetHashCode();
}
return(hash);
}
public static void Start()
{
Console.WriteLine("Print: Delegate");
Calculate(new Student()
{
Age = 25
}, StudentIsAdult);
Console.WriteLine("Print: Multicast Delegate");
IsAdult printDel = StudentIsAdult;
printDel += StudentIsNotAKid;
CalculateMultiCast(new Student()
{
Age = 25
}, printDel);
}
public bool AllowAdultAccess()
{
return(IsAdult.IsSatisfiedBy(this));
}
/// <summary>
/// Filter by if the media's intended for 18+ adult audiences.
/// </summary>
public GraphQueryArgument <bool> IsAdultArgument(bool value)
{
return(IsAdult.GetQueryArgumentAndSetValue(value));
}
