1 files changed, 24 insertions, 0 deletions
diff --git a/src/Notepad/Infrastructure/Extensions/EnumerableExtensions.cs b/src/Notepad/Infrastructure/Extensions/EnumerableExtensions.cs
new file mode 100644
index 0000000..d57c0e1
--- /dev/null
+++ b/src/Notepad/Infrastructure/Extensions/EnumerableExtensions.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+
+namespace Notepad.Infrastructure.Extensions {
+    public static class EnumerableExtensions {
+        public static void Walk<T>(this IEnumerable<T> itemsToWalk) {
+            foreach (var item in itemsToWalk) {}
+        }
+
+        public static IEnumerable<T> ThatSatisfy<T>(this IEnumerable<T> itemsToPeekInto, Predicate<T> criteriaToSatisfy) {
+            foreach (var item in itemsToPeekInto) {
+                if (item.Satisfies(criteriaToSatisfy)) {
+                    yield return item;
+                }
+            }
+        }
+
+        public static IEnumerable<T> SortedUsing<T>(this IEnumerable<T> itemsToSort, IComparer<T> sortingAlgorithm) {
+            var sortedItems = new List<T>(itemsToSort);
+            sortedItems.Sort(sortingAlgorithm);
+            return sortedItems;
+        }
+    }
+}
+\ No newline at end of file