Add an arity 3 version which takes a symbol and dispatches on it. You can
choose the position that you like best; to keep in line with your current
scheme:
(defn get-percentage
([place total-count] (get-percentage :normal place total-count))
([mode place total-count]
(condp = mode
:low (... floor ...)
:normal (... round ...)
:high (... ceil ...))))
On Tuesday, 25 November 2014, Cecil Westerhof <cldwester...@gmail.com>
wrote:
> I started playing with Clojure again. I made the following three functions:
> (defn get-percentage [place total-count]
> (int (Math/round (double (/ (* place 100) total-count)))))
>
> (defn get-percentage-low [place total-count]
> (int (Math/floor (/ (* place 100) total-count))))
>
> (defn get-percentage-high [place total-count]
> (int (Math/ceil (/ (* place 100) total-count))))
>
> Put I would like to give get-percentage an optional type to change its
> behaviour. Type could have the values 'normal', 'high' and 'low'. If there
> is no type, it has its current behaviour.
>
> What would the best way to do this?
>
>
> Later on I probably should use clojure.math.numeric-tower.
>
> --
> Cecil Westerhof
>
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