correct,
What I try to achieve is to read the vector called authors and convert it
into a set later.
So I thought i could read the contents of author with what I have put into
my orginal question but apperently I made a thinking error.
So back to the drawing table. :(
Roelof
Op maandag 27 oktober 2014 15:17:11 UTC+1 schreef Colin Yates:
> I am unsure of your question then - what you pasted is correct.
>
> On the linked page it shows a slightly different output:
> (old-book->new-book {:title "Wild Seed", :authors [octavia]})
>
> ;=> {:title "Wild Seed", :authors #{octavia}}
>
>
> The "#{}" syntax is a literal set, that is all. It isn't rendering the
> contents of octavia, merely indicating that it is a set with a single item
> in, that item being the var octavia.
>
> Maybe if you rephrase the question that might help?
>
> On Monday, 27 October 2014 14:10:37 UTC, Roelof Wobben wrote:
>>
>> 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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