title: rapidjson extract key and value
body: <p>I'm trying to extract the key and the value of an object in array but don't find the proper getter: </p>
  
  <pre><code> for (Value::ConstValueIterator itr = document["params"].Begin(); itr != document["params"].End(); ++itr)
  {
      for (Value::MemberIterator m = itr-&gt;MemberBegin(); m != itr-&gt;.MemberEnd(); ++m) {
  
      }       
  }
  </code></pre>
  
  <p>in the second loop, I want to extract the key and value from the iterator separately. how to  do the extraction? </p>