1

Assets/BITKit/Core/Mathematics/MathE.cs

@@ -44,6 +44,19 @@ namespace BITKit
             return list;
         }
 
+        public static bool TryGetIndexOf<T>(this IEnumerable<T> self, Func<T, bool> factory, out int index)
+        {
+            index = -1;
+            var enumerable = self as T[] ?? self.ToArray();
+            for (var i = 0; i < enumerable.Length; i++)
+            {
+                var item = enumerable.ElementAt(i);
+                if (!factory.Invoke(item)) continue;
+                index = i;
+                return true;
+            }
+            return false;
+        }
         public static bool Contains<T>(IEnumerable<T> a, IEnumerable<T> b)
         {
             foreach (var x in b)