From ec983ff21cc24ad9ee246b8d2cc4f012bdd2ad63 Mon Sep 17 00:00:00 2001
From: Jason Zhu <jasonzhuyq@outlook.com>
Date: Mon, 12 Jul 2021 12:07:21 +1000
Subject: [PATCH] 5.1.4 Applying Extension Methods to an Interface (Bug fix)

---
 .../essential_csharp_features/Program.cs                        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chap5_essential_language_features/essential_csharp_features/Program.cs b/chap5_essential_language_features/essential_csharp_features/Program.cs
index f9da1e5..f1126fd 100644
--- a/chap5_essential_language_features/essential_csharp_features/Program.cs
+++ b/chap5_essential_language_features/essential_csharp_features/Program.cs
@@ -10,7 +10,7 @@ namespace automatically_implemented_properties
         static void Main(string[] args)
         {
             // create and populate Shopping Cart, implementing IEnumerable<Product> interface
-            ShoppingCart products = new ShoppingCart
+            IEnumerable<Product> products = new ShoppingCart
             {
                 Products = new List<Product>
                 {