title: Objective-C NSJSONSerialization JSONObjectWithData issue changes the format of the JSON text
body: <p>I run this sample of code</p>
  
  <pre><code> NSString *st =@"{ \"Hello\" : [ {\"m\":\"m\"} ] }";
  
  NSDictionary * dic = [NSJSONSerialization JSONObjectWithData:[st dataUsingEncoding:NSUTF8StringEncoding] options:0 error:nil];
  </code></pre>
  
  <p>and i get the output in dic:</p>
  
  <pre><code>{
      Hello =     (
                  {
              m = m;
          }
      );
  }
  </code></pre>
  
  <p>replace the square bracket "[" to "(" ,, Why ??</p>