Optimization: used StartsWith(char) instead of StartsWith(string) where supported

Author: epeshk

src/Serilog.Extensions.Logging/Extensions/Logging/SerilogLogger.cs

@@ -103,12 +103,20 @@ LogEvent PrepareWrite<TState>(LogEventLevel level, EventId eventId, TState state
                 {
                     messageTemplate = value;
                 }
+#if NET6_0_OR_GREATER || NETSTANDARD2_1_OR_GREATER
+                else if (property.Key.StartsWith('@'))
+#else
                 else if (property.Key.StartsWith("@"))
+#endif
                 {
                     if (_logger.BindProperty(GetKeyWithoutFirstSymbol(DestructureDictionary, property.Key), property.Value, true, out var destructured))
                         properties.Add(destructured);
                 }
+#if NET6_0_OR_GREATER || NETSTANDARD2_1_OR_GREATER
+                else if (property.Key.StartsWith('$'))
+#else
                 else if (property.Key.StartsWith("$"))
+#endif
                 {
                     if (_logger.BindProperty(GetKeyWithoutFirstSymbol(StringifyDictionary, property.Key), property.Value?.ToString(), true, out var stringified))
                         properties.Add(stringified);

src/Serilog.Extensions.Logging/Extensions/Logging/SerilogLoggerScope.cs

@@ -54,13 +54,20 @@ public static void EnrichWithStateAndCreateScopeItem(LogEvent logEvent, ILogEven
         void AddProperty(string key, object? value)
         {
             var destructureObject = false;
-
+#if NET6_0_OR_GREATER || NETSTANDARD2_1_OR_GREATER
+            if (key.StartsWith('@'))
+#else
             if (key.StartsWith("@"))
+#endif
             {
                 key = SerilogLogger.GetKeyWithoutFirstSymbol(SerilogLogger.DestructureDictionary, key);
                 destructureObject = true;
             }
+#if NET6_0_OR_GREATER || NETSTANDARD2_1_OR_GREATER
+            else if (key.StartsWith('$'))
+#else
             else if (key.StartsWith("$"))
+#endif
             {
                 key = SerilogLogger.GetKeyWithoutFirstSymbol(SerilogLogger.StringifyDictionary, key);
                 value = value?.ToString();