- lseq-map proc lseq1 lseq2 ...procedure
The lseq-map procedure lazily applies proc element-wise to the corresponding elements of the lseqs, where proc is a procedure taking as many arguments as there are lseqs and returning a single value, and returns an lseq of the results in order. The dynamic order in which proc is applied to the elements of the lseqs is unspecified.
(lseq-map (lambda (x) (lseq-car (lseq-cdr x))) '((a b) (d e) (g h))) ;=> (b e h) (lseq-map (lambda (n) (expt n n)) (make-iota-generator +inf.0 1 1) ;=> (1 4 27 256 3125 ...) (lseq-map + '(1 2 3) '(4 5 6)) => (5 7 9) (let ((count 0)) (lseq-map (lambda (ignored) (set! count (+ count 1)) count) '(a b))) ;=> (1 2) or (2 1)