On Thu, Jul 16, 2009 at 11:34 AM, Dragan <[email protected]> wrote:
> Thanks for the tip, I meant something else.
> Let's say that I want to write a function do-something. There could be
> 2 implementations: do-something-quickly and do-something-elegantly.
> The parameters are the same and there are no differences in their
> "interface". I would like to be able to call it by writing (do-
> something arg) in my code and specify which implementation I want to
> use somewhere else (in the configuration part of the code).
>
Functions are values you can pass around, so:
(defn do-something-quickly [x y] ... )
(defn do-something-elegantly [x y] ... )
(defn do-various-things [do-something x y z w]
(let [z (do-something x y)]
... ))
user=> (do-various-things do-something-quickly 13 19 3 23)
some-sort-of-output
user=> (do-various-things do-something-elegantly 13 19 3 23)
some-sort-of-output
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