Last Lambda Expression Sample in F#

Last

Last: Retrieves last element from a collection. Throws exception if collection is empty.
Last: Retrieves last element from a collection. Throws exception if collection is empty.

This Lambda Expression sample retrieves last element from array.
This Lambda Expression sample retrieves last element from array.

// A Query Expression cannot be constructed for Last() in C#.
// Consider using a Lambda Expression instead.

' A Query Expression cannot be constructed for Last() in VB.NET.
' Consider using a Lambda Expression instead.

let Sample_Last_Linq() =
    let numbers = [|7; 3; 5|]

    let result = query {
        for n in numbers do
        last
    }

    Debug.WriteLine(sprintf "Last number in array is:")
    Debug.WriteLine(sprintf "%d" result)

Output:

Last number in array is:
5

static void Sample_Last_Lambda()
{
    int[] numbers = { 7, 3, 5 };

    var result = numbers.Last();

    Debug.WriteLine("Last number in array is:");
    Debug.WriteLine(result);
}

Output:

Last number in array is:
5

Private Shared Sub Sample_Last_Lambda()
    Dim numbers As Integer() = {7, 3, 5}

    Dim result = numbers.Last()

    Debug.WriteLine("Last number in array is:")
    Debug.WriteLine(result)
End Sub

Output:

Last number in array is:
5

let Sample_Last_Lambda() =
    let numbers = [|7; 3; 5|]

    let result = numbers.Last()

    Debug.WriteLine(sprintf "Last number in array is:")
    Debug.WriteLine(sprintf "%d" result)

Output:

Last number in array is:
5

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Last