The dual dot is a special syntax for things with two arguments. Eg:
(1 . + . 3) (4 . / . 2) On Thu, Nov 17, 2011 at 3:26 PM, Jordan Schatz <jor...@noionlabs.com> wrote: > What does => mean? I see it used in formlets: > From http://docs.racket-lang.org/web-server/formlets.html?q=formlets > > like: > > (define date-formlet > (formlet > (div "Month:" ,{input-int . => . month} > "Day:" ,{input-int . => . day}) > (list month day))) > > Which I think should be and appears to be equal to: > > (define date-formlet > (formlet > (div "Month:" ,{=> input-int month} > "Day:" ,{=> input-int day}) > (list month day))) > > But what does the => do? Is it a form of apply? > > Thanks, > Jordan > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users > -- http://www.wisdomandwonder.com/ ACM, AMA, COG, IEEE _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
