- (awhen test? xpr . xprs) syntax
Anaphoric version of when, i.e. the one-armed if, which allows multiple expressions to be evaluated, if test? succeeds. As with aif, the result of test? is stored in the variable it, which can be refered in xpr ...
(awhen (memv 3 '(1 2 3 4 5)) (print it) (reverse it))