title: Excluding some character from a range - javascript regular expression
body: <p>To validate only word simplest regex would be (I think)</p>
  
  <pre><code>/^\w+$/
  </code></pre>
  
  <p>I want to exclude digits and <code>_</code> from this (as it accept <code>aa10aa</code>and aa_aa now, I want to reject them)</p>
  
  <p>I think it can be gained by </p>
  
  <pre><code> /^[a-zA-z]+$/
  </code></pre>
  
  <p>which means I have to take a different approach other than the previous one.</p>
  
  <p>but what if I want to exclude any character from this range 
  suppose I will not allow <code>k</code>,<code>K</code>,<code>p</code>,<code>P</code> or more. </p>
  
  <p><strong>Is there a way to add an excluding list in the range without changing the range.?</strong></p>