[racket] Super basic question about strings

From: Eli Barzilay (eli at barzilay.org)
Date: Wed Nov 17 02:40:56 EST 2010

Two minutes ago, Richard Lawrence wrote:
> Dear Racketeers:
> Ok, I feel really silly asking this, because I feel like I am missing
> something really conceptually basic, but the answer isn't apparent to me
> from the examples in the Guide:
> What's the right way to programatically build up strings in Racket?
> For example, suppose I want to consume an association list like
>  '((k1 . v1) (k2 . v2) ...)
> and produce a string that looks like:
>   "k1=v1 k2=v2 ..."

Here's one way to do this:

    (define (alist->string alist)
       (for/list ([a (in-list alist)])
         (format "~a=~a" (car a) (cdr a)))
       " "))

          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                    http://barzilay.org/                   Maze is Life!

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