shorten valuetextequals example

snippets/core/system-text-json/csharp/Program.cs

@@ -1,4 +1,6 @@
 using System;
+using System.IO;
+using System.Text;
 using System.Threading.Tasks;
 
 namespace SystemTextJsonSamples
@@ -105,6 +107,8 @@ static async Task Main(string[] args)
 
             Console.WriteLine("\n============================= Utf8Reader from file\n");
             Utf8ReaderFromFile.Run();
+            string jsonString = File.ReadAllText("Universities.json");
+            ValueTextEqualsExample.Run(Encoding.UTF8.GetBytes(jsonString));
 
             Console.WriteLine("\n============================= Utf8Reader from byte array\n");
             Utf8ReaderFromBytes.Run();

snippets/core/system-text-json/csharp/ValueTextEqualsExample.cs

@@ -0,0 +1,41 @@
+using System;
+using System.IO;
+using System.Text;
+using System.Text.Json;
+
+namespace SystemTextJsonSamples
+{
+    public class ValueTextEqualsExample
+    {
+        // <SnippetDefineUtf8Var>
+        private static readonly byte[] s_nameUtf8 = Encoding.UTF8.GetBytes("name");
+        // </SnippetDefineUtf8Var>
+        public static void Run(ReadOnlySpan<byte> jsonReadOnlySpan)
+        {
+            int count = 0;
+            int total = 0;
+            var reader = new Utf8JsonReader(jsonReadOnlySpan);
+
+            // <SnippetUseUtf8Var>
+            while (reader.Read())
+            {
+                JsonTokenType tokenType = reader.TokenType;
+
+                switch (tokenType)
+                {
+                    case JsonTokenType.StartObject:
+                        total++;
+                        break;
+                    case JsonTokenType.PropertyName:
+                        if (reader.ValueTextEquals(s_nameUtf8))
+                        {
+                            count++;
+                        }
+                        break;
+                }
+                // </SnippetUseUtf8Var>
+            }
+            Console.WriteLine($"{count} out of {total} have \"name\" properties");
+        }
+    }
+}