- (shift!/set VARIABLE [WHEN-EMPTY])syntax
Like shift! but assigns the VARIABLE '() after shifting from a list of length 1.
WHEN-EMPTY, which defaults to #f, is returned when the list bound to VARIABLE is empty.
Like shift! but assigns the VARIABLE '() after shifting from a list of length 1.
WHEN-EMPTY, which defaults to #f, is returned when the list bound to VARIABLE is empty.