stdlib/json.rb in opal-1.2.0 vs stdlib/json.rb in opal-1.3.0.alpha1

@@ -27,11 +27,11 @@
           return value;
 
         case 'boolean':
           return !!value;
 
-        case 'null':
+        case 'undefined':
           return nil;
 
         case 'object':
           if (!value) return nil;
 
@@ -137,11 +137,11 @@
 
       for (var i = 0, length = #{self}.length; i < length; i++) {
         result.push(#{`self[i]`.to_json});
       }
 
-      return '[' + result.join(', ') + ']';
+      return '[' + result.join(',') + ']';
     }
   end
 end
 
 class Boolean
@@ -166,10 +166,10 @@
         }
 
         result.push(#{`key`.to_s.to_json} + ':' + #{`value`.to_json});
       }
 
-      return '{' + result.join(', ') + '}';
+      return '{' + result.join(',') + '}';
     }
   end
 end
 
 class NilClass