Shorthand for add object to list if object is not null

Question

Say I have the following in c#:

List<Foo> fooList = new();
Foo fooObject;

Does a shorthand exist for the following?

if(fooObject != null)
{
    fooList.Add(fooObject);
}

Depending on the situation in my code, fooObject might be null or not, but I would like to add it to the fooList if not null.

As far as my research goes, none of the null-coalecsing or ternary operator possibilities cover the one above.

Answer 1

The only solution I can think of is using an extension method

public class Foo 
{
}
static class Program
{
    static void Main(string[] args)
    {
        List<Foo> list =  new List<Foo>();
        Foo item = null;
        list.AddNotNull(item);
        item = new Foo();
        list.AddNotNull(item);
    }

    public static void AddNotNull<T>(this IList<T> list, T item) where T : class
    {
        if (item != null)
        {
            list.Add(item);
        }
    }
}