title: How do I write a Regular Expression to match any three digit number value?
body: <p>I'm working with some pretty funky HTML markup that I inherited, and I need to remove the following attributes from about 72 <code>td</code> elements.</p>
  
  <pre><code>sdval="285"
  </code></pre>
  
  <p>I know I can do this with find/replace in my code editor, except since the value of each attribute is different by 5 degree increments, I can't match them all without a Regular Expression. (FYI I'm using Esspress and it does support RegExes in it's Find/Replace tool)</p>
  
  <p>Only trouble is, I really can't figure out how to write a RegEx for this value. I understand the concept of RegExes, but really don't know how to use them.</p>
  
  <p>So how would I write the following with a Regular Expression in place of the digits so that it would match any three digit value?</p>
  
  <pre><code>sdval="285"
  </code></pre>