test

My project/Library/PackageCache/com.unity.inputsystem/InputSystem/Utilities/MiscHelpers.cs

@@ -0,0 +1,40 @@
+using System.Collections.Generic;
+
+namespace UnityEngine.InputSystem.Utilities
+{
+    internal static class MiscHelpers
+    {
+        public static TValue GetValueOrDefault<TKey, TValue>(this Dictionary<TKey, TValue> dictionary, TKey key)
+        {
+            return dictionary.TryGetValue(key, out var value) ? value : default;
+        }
+
+        public static IEnumerable<TValue> EveryNth<TValue>(this IEnumerable<TValue> enumerable, int n, int start = 0)
+        {
+            var index = 0;
+            foreach (var element in enumerable)
+            {
+                if (index < start)
+                {
+                    ++index;
+                    continue;
+                }
+
+                if ((index - start) % n == 0)
+                    yield return element;
+                ++index;
+            }
+        }
+
+        public static int IndexOf<TValue>(this IEnumerable<TValue> enumerable, TValue value)
+        {
+            var index = 0;
+            foreach (var element in enumerable)
+                if (EqualityComparer<TValue>.Default.Equals(element, value))
+                    return index;
+                else
+                    ++index;
+            return -1;
+        }
+    }
+}