On Mar 8, 11:57 pm, Adrian Cuthbertson <adrian.cuthbert...@gmail.com>
wrote:
> Hi Ivar,
>
> > ;; Do things such as hash-map comprehensions exist? Should they? ;-)
> > (defn some-eqn3 [obj]
> > (let [{:a a :b b :c c} obj]
> > (/ (+ (- b) (sqrt (- (* b b) (* 4 a c))))
> > (* 2 a))))
>
> At least a partial stab at some of your questions...
>
> (def myhash {:a 1 :b 5 :c 6 :x nil})
>
> (defn some-eqn3 [obj]
> (let [{:keys [a b c]} obj]
> (/ (+ (- b) (Math/sqrt (- (* b b)
> (* 4 a c)))) (* 2 a))))
>
> (some-eqn3 myhash)
> -2.0
>
> Have a look athttp://clojure.org/special_forms, regarding
> destructured binding with let.
Great! I thought there must be something equivalent to WITH-SLOTS in
Clojure, I just hadn't run into it yet. Also, I think I am quite happy
without the mutability that WITH-SLOTS exposes as well...
Ivar
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