Preparation code

<script>
  var validChars = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'],
      checkFor = 'x';
</script>

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for (i = 0; i < validChars.length; i++)
if (validChars[i] == checkFor) return i;

for (i in validChars)
if (validChars[i] == checkFor) return i;

return validChars.join("").indexOf(checkFor);

return validChars.indexOf(checkFor);

i = validChars.length;
while( i-- ) 
  if( validChars[i] == checkFor ) return i;

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by Soulcyon on 25th September 2011
• Revision 2: published by Soulcyon on 12th October 2011
• Revision 3: published by Soulcyon on 13th October 2011
• Revision 4: published on 16th January 2013

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