You do read it. You just don't turn it into a set. To turn a vector into a
set, you can use the set function: (set [octavia]).
On Monday, 27 October 2014, Roelof Wobben <rwob...@hotmail.com> wrote:
> 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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