title: Regex - check string has one or more chars without some chars
body: <p>I have a string like that</p>
  
  <pre><code>const str = "&lt;p&gt;&lt;p&gt;&lt;br&gt;&lt;/p&gt;something&lt;/p&gt;";
  </code></pre>
  
  <p>I want to check if the string has one or more char without <code>&lt;, &gt;, p, /, b, r, (whitespace)</code>. In the above case it should true, because the string has char of <code>s, o, m, e</code> e.t.c</p>
  
  <p>How can do this check ?</p>