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(emacs-lisp-intro.info)yank nthcdr Exercises

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Exercises with `yank' and `nthcdr'
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   * Using `C-h v' (`describe-variable'), look at the value of your
     kill ring.  Add several items to your kill ring; look at its value
     again.  Using `M-y' (`yank-pop)', move all the way around the kill
     ring.  How many items were in your kill ring?  Find the value of
     `kill-ring-max'.  Was your kill ring full, or could you have kept
     more blocks of text within it?

   * Using `nthcdr' and `car', construct a series of expressions to
     return the first, second, third, and fourth elements of a list.