title: RegExp to match letters, numbers and special characters
body: <p>How can I write a regex pattern in JavaScript that accepts:</p>
  
  <pre><code>ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789[]`!@#$%^&amp;*()_={}:;&lt;&gt;+-'
  </code></pre>
  
  <p>especially the <code>&amp;</code> and <code>'</code></p>