title: In javascript, how would I do this rfind?
body: <pre><code>www.mydomain.com/invite/abc123
  </code></pre>
  
  <p>I want the function to return "abc123". The logic goes like this:</p>
  
  <pre><code>If there is a forward slash, then take all characters after the last forward slash.
  </code></pre>
  
  <p>In python, I write it like this: </p>
  
  <pre><code>if s.find('/') &gt;= 0:
      return s[s.rfind('/')+1:]
  </code></pre>
  
  <p>But how do I do this in javascript?</p>