title: How can I find the numbers in an array of characters?
body: <p>How can I find which characters in a <code>char[]</code> are numbers?</p>
  
  <pre><code>char[] example = { '2', 'a', '4', 'f', 'u', 'i', '6' };
  
  if(example[3] == ???) 
  {
    Console.WriteLine(example[3].toString());
  }
  </code></pre>