title: What are language codes in Chrome's implementation of the HTML5 speech recognition API?
body: <p>Chrome implemented the HTML5 speech recognition API. Many languages are supported. I wanna know which languages are supported and each language's corresponding code which is used in the HTML element's <code>lang</code> attribute.</p>
  
  <p>For instance:</p>
  
  <ul>
  <li>Polish (pl-PL)</li>
  <li>Turkish (tr-TR)</li>
  </ul>
  
  <p>Thank you!</p>