On Jun 21, 2014, at 3:22 PM, Matthias Felleisen <matth...@ccs.neu.edu> wrote:
>
> Thanks. We will need to figure out how to accommodate keywords in a
> teachpack.
>
> In the meantime, write frame like this:
>
> (define (frame-2 img
> #:frame-color (frame-color 'black)
> #:background-color (background-color 'transparent)
> #:frame-offset (frame-offset 0)
> #:frame-x-offset (frame-x-offset frame-offset)
> #:frame-y-offset (frame-y-offset frame-offset))
> (define width (+ (image-width img) frame-x-offset))
> (define height (+ (image-height img) frame-y-offset))
> (overlay (rectangle width height 'outline frame-color)
> (center-crop width height img)
> (rectangle width height 'solid background-color)))
>
> Prefer define over let. -- Matthias
>
Thanks! Is there any documentation or guide on which “styles” to prefer in
writing Racket code? I find myself scratching my head at times in these matters!
-Kevin
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