title: How to get UTF-16 byte array?
body: <p>I have an <code>UTF-8</code> string and I need to get the byte array of <code>UTF-16</code> encoding, so how can I convert my string to <code>UTF-16</code> byte array?</p>
  
  <p><strong>Update:</strong><br>
  I mean we have <code>Encoding.Unicode.GetBytes()</code> or even <code>Encoding.UTF8.GetBytes()</code> function to get byte array of strings, what about <code>UTF-16</code>? We don't have any <code>Encoding.UTF16.GetBytes()</code> so how can I get the byte array?</p>