title: AngularJS - show $index as char
body: <p>I have an ng-repeat which repeats two <code>&lt;li&gt;</code> s a particular number of time.  I am also using the <code>$index</code> to see which index the outputted <code>&lt;li&gt;</code> is.</p>
  
  <p>A sample is on this fiddle: <a href="http://jsfiddle.net/sh0ber/cHQLH" rel="nofollow">http://jsfiddle.net/sh0ber/cHQLH</a></p>
  
  <p>However, I need that one of the <code>&lt;li&gt;</code>s when using the index rather than outputting numbers like 1, 2, 3 etc, it outputs letters like A, B, C and so on.</p>
  
  <p>Is there a way to do this in AngularJS?  I am new to this.</p>
  
  <p>EDIT:</p>
  
  <p>I need that the output would be in the following way:
  C1, C2, C3....
  B1, B2, B3....
  A1, A2, A3...</p>
  
  <p>i.e. the letters are descending.</p>
  
  <p>Thanks </p>