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cryy22 · May 4, 2024 · d2bd0b7 · d2bd0b7
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diff --git a/Runtime/Common/IReadOnlyListExtensions.cs b/Runtime/Common/IReadOnlyListExtensions.cs
@@ -0,0 +1,17 @@
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Crysc.Common
+{
+    public static class ReadOnlyListExtensions
+    {
+        public static int IndexOf<T>(this IReadOnlyList<T> list, T element)
+        {
+            for (var i = 0; i < list.Count; i++)
+                if (EqualityComparer<T>.Default.Equals(x: list.ElementAt(i), y: element))
+                    return i;
+
+            return -1;
+        }
+    }
+}
diff --git a/Runtime/Common/IReadOnlyListExtensions.cs.meta b/Runtime/Common/IReadOnlyListExtensions.cs.meta