In that case the fault is mine. I misunderstood you. Apologies

I appreciate that you tried to answer the question but assuming that I'm unfamiliar with the alphabet was completely unnecessary. I asked the question because I was confused not to learn the alphabet. You'd rather not answer the question than do so but make me feel dumb.

Is it normal to pass the test but failed the attempt? I believe my solution works and it does pass the test how ever an error pops up when i try to 'attempt the question'

i am trying to solve this but am stuck at the point that the indexOf() method does not separately return the index of values that appear twice..is there any other possible way if i may ask