From cf1d8ce609b5d645164028653043a35ee754ddc7 Mon Sep 17 00:00:00 2001
From: Martin Lee <martinlee1987@gmail.com>
Date: Tue, 21 Jan 2020 20:54:49 +0000
Subject: [PATCH] ReadOnlyDictionaryExtensions

---
 .../Extensions/ReadOnlyDictionaryExtensions.cs    | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 SuccessfulCodeTools/Extensions/ReadOnlyDictionaryExtensions.cs

diff --git a/SuccessfulCodeTools/Extensions/ReadOnlyDictionaryExtensions.cs b/SuccessfulCodeTools/Extensions/ReadOnlyDictionaryExtensions.cs
new file mode 100644
index 0000000..0ec54dc
--- /dev/null
+++ b/SuccessfulCodeTools/Extensions/ReadOnlyDictionaryExtensions.cs
@@ -0,0 +1,15 @@
+using System.Collections.Generic;
+
+namespace SuccessfulCodeTools.Extensions
+{
+    public static class ReadOnlyDictionaryExtensions
+    {
+        public static TValue GetValueOrDefault<TKey, TValue>(this IReadOnlyDictionary<TKey, TValue> dictionary, TKey key)
+        {
+            if(dictionary.TryGetValue(key, out TValue value))
+                return value;
+
+            return default;
+        }
+    }
+}