TryGetCount< T >() [1/2]

static bool System.Collections.Immutable.ImmutableExtensions.TryGetCount< T > ( this IEnumerable sequence, out int count )

inlinestaticpackage

Definition at line 126 of file ImmutableExtensions.cs.

    {
        if (sequence is ICollection collection)
        {
            count = collection.Count;
            return true;
        }
        if (sequence is ICollection<T> collection2)
        {
            count = collection2.Count;
            return true;
        }
        if (sequence is IReadOnlyCollection<T> readOnlyCollection)
        {
            count = readOnlyCollection.Count;
            return true;
        }
        count = 0;
        return false;
    }

References System.collection, System.count, and System.Collections.Generic.Dictionary< TKey, TValue >.Count.