I introduced templates today. Almost as if on cue, one student asked whether he could use else instead of (cons? l). I told them I was going to make a MORAL judgment about why it was EVIL, and spent ten minutes talking about all that.
As class ended, one of my students came up and said, "So why doesn't the Racket language Web site agree with you?" http://docs.racket-lang.org/guide/Lists__Iteration__and_Recursion.html (Look for "[else".) Shriram _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev

