Hi Joe, Laurent and Nikita,
Thanks for your help, the destructuring form of [[k v]] is much
cleaner, that's exactly what I was looking for.
Nikita, thanks for catching the typo and the misplaced paren, the code
is working smoothly now.
I have problem coded in Java, I plan to complete the Clojure
Hello folks,
I'm working on some sample code and I have a feeling that there is an
easier/more succinct way to code this. Any help or RTFM with a link
is appreciated.
Given:
(def cookbook {:Coffee {:coffee 3, :sugar 1, :cream 1},
:Decaf-Coffee{:decaf 3, :sugar 1,
Hi, Daniel
Here's my variant
https://gist.github.com/49c6ac95b7456a150df8
Note, that in cookbook :Caffe-Moca should contain :cocoa, not :coco
And I your variant calculating drink cost works incorrectly.
(* (cost (key map-entry) (val map-entry)))
should be replaced by
(* (cost (key map-entry))
Hi, not really simplifying (in the sense of removing code), but
(tentatively ?) de-obfuscating:
(defn print-menu [menu]
(do
(println Menu:)
(doseq [[drink number] menu]
(println
(str number , (drink-name drink) ,
(reduce
(fn [acc-cost [ingredient
I agree with Laurent's idea that you should pull this out as a
separate function, but I think the most direct answer to your question
is that you can bind the map entries in a destructuring as if they
were two-element vectors.
(map (fn [[ingr quant]] (* (cost ingr) quant)) (cookbook drink))
Joe
