How to check if IEnumerable is null or empty?

Question

I love string.IsNullOrEmpty method. I\'d love to have something that would allow the same functionality for IEnumerable. Is there such? Maybe some collection he

Answer 1

I built this off of the answer by @Matt Greer

He answered the OP's question perfectly.

I wanted something like this while maintaining the original capabilities of Any while also checking for null. I'm posting this in case anyone else needs something similar.

Specifically I wanted to still be able to pass in a predicate.

public static class Utilities
{
    /// 

    /// Determines whether a sequence has a value and contains any elements.
    /// 
    /// The type of the elements of source.
    /// The  to check for emptiness.
    /// true if the source sequence is not null and contains any elements; otherwise, false.
    public static bool AnyNotNull(this IEnumerable source)
    {
        return source?.Any() == true;
    }

    /// 

    /// Determines whether a sequence has a value and any element of a sequence satisfies a condition.
    /// 
    /// The type of the elements of source.
    /// An  whose elements to apply the predicate to.
    /// A function to test each element for a condition.
    /// true if the source sequence is not null and any elements in the source sequence pass the test in the specified predicate; otherwise, false.
    public static bool AnyNotNull(this IEnumerable source, Func predicate)
    {
        return source?.Any(predicate) == true;
    }
}

The naming of the extension method could probably be better.