title: Is converting "Integer to String" by appending it to double quotes like 'return ("" + 2)' costly operation? If yes, what is alternative?
body: <p>I have integer status response from a REST API. I need to return string, so I use it like</p>
  <pre><code>return &quot;&quot; + statusCode
  </code></pre>
  <p>Is it fine way to do that or is it costly? Or should I use <code>String.valueOf()</code> or is there another alternative?</p>