title: Why one over another: UBound or Length
body: <p>Could there be any specific reason why one can choose <code>UBound</code> over <code>Length</code>?</p>
  
  <p>Here is the code and 1-dimension is passed as second parameter.</p>
  
  <pre><code>    For iIndex = 0 To UBound(myList)
          If Left(Request.ServerVariables("REMOTE_ADDR"), Len(myList(iIndex))) = saIPList(iIndex) Then
              bAuth = True
              Exit For
          End If
      Next
  </code></pre>
  
  <p>Any performance gain against <code>Length</code></p>