Nope, the exercise I stated this :
(old-book->new-book {:title "Wild Seed", :authors [octavia]})
See exercise 22 on this page :
http://iloveponies.github.io/120-hour-epic-sax-marathon/structured-data.html#exercise-22
Roelof
Op maandag 27 oktober 2014 14:52:23 UTC+1 schreef Colin Yates:
> (get book :authors) is saying "return the value of the ":authors" key in
> the "book" map. You provided {:title... :authors [octavia]} as the "book"
> map, the value of "authors" being a vector with a single element. That
> single element being "{:name "Octavia E. Butler"
>
> :birth-year 1947
> :death-year 2006}"
>
>
> In other words, it is all working correctly.
>
>
> Did you mean (old-book->new-book {:title "Wild Seed", :authors (:name
> octavia)}) ?
>
>
>
> On Monday, 27 October 2014 13:45:45 UTC, Roelof Wobben wrote:
>>
>> Hello,
>>
>> I have this "facts".
>>
>> (def octavia {:name "Octavia E. Butler"
>> :birth-year 1947
>> :death-year 2006})
>>
>>
>> (def wild-seed {:title "Wild Seed", :authors [octavia]})
>>
>>
>>
>> So I thought when I do this :
>>
>>
>> (defn old-book->new-book [book]
>> (get book :authors))
>>
>>
>> (old-book->new-book {:title "Wild Seed", :authors [octavia]})
>>
>>
>> I see this output : [{:death-year 2006, :name "Octavia E. Butler",
>> :birth-year 1947}]
>>
>> where I expected it to be octavia or octavia E. Butler
>>
>>
>> Can someone explain why I see the wrong output ?
>>
>>
>> Roelof
>>
>>
>>
>>
>> But I see this output :
>>
>>
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