Showing unique characters in a string only once

Question

I have a string with repeated letters. I want letters that are repeated more than once to show only once. For instance I have a string aaabbbccc i want the result to be abc.

Answer 1

Here is the simplest function to do that

  function remove(text) 
    {
      var unique= "";
      for(var i = 0; i < text.length; i++)
      {
        if(unique.indexOf(text.charAt(i)) < 0) 
        {
          unique += text.charAt(i);
        }
      }
      return unique;
    }