Refine null/undefined check.

kishikawakatsumi · kishikawakatsumi · commit 74fd2504c180 · 2014-02-06T00:07:03.000+09:00
diff --git a/Classes/JSBScriptingSupport.m b/Classes/JSBScriptingSupport.m
@@ -36,8 +36,8 @@ + (void)initialize
          @"  var namespace = {\n"
          @"    defineClass: function(declaration, instanceMembers, staticMembers) {\n"
          @"      return __JSB_JSBScriptingSupport.defineClass(declaration,"
-         @"                                                   typeof instanceMembers === 'undefined' ? {} : instanceMembers,"
-         @"                                                   typeof staticMembers === 'undefined' ? {} : staticMembers);\n"
+         @"                                                   instanceMembers == null ? {} : instanceMembers,"
+         @"                                                   staticMembers == null ? {} : staticMembers);\n"
          @"    },\n"
          @"    define: function(declaration, instanceMembers, staticMembers) {\n"
          @"      JSB.dump('`define` is deprecated, use `defineClass` instead.');\n"
