Now Im complete confused. I never succeed in reading the value of authors
so I can do the set command.
Roelof
Op maandag 27 oktober 2014 15:50:05 UTC+1 schreef Gary Verhaegen:
> 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 <rwo...@hotmail.com
> <javascript:>> 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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