static void Main(string[] args)
{
// Func indicates lambda definition
// takes an int and return an int
Func <int, int> square = x => x * x;
Console.WriteLine(square(3));
Console.WriteLine("**********");
Func <int, int, int> add = (x, y) => x + y;
Console.WriteLine(add(3, 4));
Console.WriteLine("**********");
Func <int, int, int> add2 = (x, y) =>
{
int temp = x + y;
return(temp);
};
Console.WriteLine("**********");
// returns void
Action <int> write = x => Console.WriteLine(x);
write(999);
Console.WriteLine("**********");
IEnumerable <Employee> developers = new Employee[]
{
new Employee {
Id = 1, Name = "Julien"
},
new Employee {
Id = 2, Name = "Bibi"
}
};
Console.WriteLine(developers.MyCount());
Console.WriteLine("**********");
IEnumerable <Employee> sales = new List <Employee>()
{
new Employee {
Id = 3, Name = "Lulu"
}
};
IEnumerator <Employee> enumerator = developers.GetEnumerator();
while (enumerator.MoveNext())
{
Console.WriteLine(enumerator.Current.Name);
}
Console.WriteLine("**********");
foreach (var Employee in developers.Where(e => e.Name.StartsWith('B')))
{
Console.WriteLine(Employee.Name);
}
}