clojure.string/join not clojure.join/string
> On 23 Oct 2015, at 13:49, r/ Wobben <wobbe...@gmail.com> wrote:
>
> Thanks,
>
> I tried it like this :
>
> (defn convert-back
> "converts the map back to a csv string"
> [{:keys [name, city]}, records ]
> (map (fn [{:keys [name city]}] (clojure.join/string “,” [name city])))
> records)
>
> and then I do : (convert-back {:name "roelof" :city: secret}, { :name "X"
> :city "Earth"} )
>
> and I see this error when running in repl :
> #error {
> :cause clojure.join
> :via
> [{:type clojure.lang.Compiler$CompilerException
> :message java.lang.ClassNotFoundException: clojure.join,
> compiling:(chapter_4/core.clj:56:47)
> :at [clojure.lang.Compiler analyzeSeq Compiler.java 6730]}
> {:type java.lang.ClassNotFoundException
> :message clojure.join
> :at [java.net.URLClassLoader$1 run URLClassLoader.java 366]}]
> :trace
> [[java.net.URLClassLoader$1 run URLClassLoader.java 366]
> [java.net.URLClassLoader$1 run URLClassLoader.java 355]
> [java.security.AccessController doPrivileged AccessController.java -2]e
> clojure.join
> :via
> [{:type clojure.lang.Compiler$CompilerException
> :message java.lang.ClassNotFoundException: clojure.join,
> compiling:(chapter_4/core.clj:56:47)
> :at [clojure.lang.Compiler analyzeSeq Compiler.java 6730]}
> {:type java.lang.ClassNotFoundException
> :message clojure.join
> :at [java.net.URLClassLoader$1 run URLClassLoader.java 366]}]
> :trace
> [[java.net.URLClassLoader$1 run URLClassLoader.java 366]
> [java.net.URLClassLoader$1 run URLClassLoader.java 355]
> [java.security.AccessController doPrivileged AccessController.java -2]
> #error {
> :cause clojure.join
> :via
> [{:type clojure.lang.Compiler$CompilerException
> :message java.lang.ClassNotFoundException: clojure.join,
> compiling:(chapter_4/core.clj:56:47)
> :at [clojure.lang.Compiler analyzeSeq Compiler.java 6730]}
> {:type java.lang.ClassNotFoundException
> :message clojure.join
> :at [java.net.URLClassLoader$1 run URLClassLoader.java 366]}]
> :trace
> [[java.net.URLClassLoader$1 run URLClassLoader.java 366]
> [java.net.URLClassLoader$1 run URLClassLoader.java 355]
> [java.security.AccessController doPrivileged AccessController.java -2]
>
> Roelof
>
>
> (convert-back {:name "roelof" :glitter-index 2 })(convert-back {:name
> "roelof" :glitter-index 2 })
> Op vrijdag 23 oktober 2015 14:25:44 UTC+2 schreef Colin Yates:
> (apply clojure.string/join “," (vals my-map)) would work but you can’t
> guarantee the order.
>
> (map (fn [{:keys [name city]}] (clojure.join/string “,” [name city])))
> my-map) gives you control of the order in which the fields are processed.
>
> You could also look at juxt as well?
>
>> On 23 Oct 2015, at 12:49, r/ Wobben <wobb...@gmail.com <javascript:>> wrote:
>>
>> Hello,
>>
>> As a challenge I need to convert a map structure to a csv structure.
>>
>> So ( { :name "roelof", :city secret }) need to be converted to roelof,
>> secret.
>>
>> I think I can use something like (map clojure.string/join ..) for it but it
>> seems I have to make a function out of the :name roelof part to get roelof
>> back.
>>
>> I could use get for then I do not know how to call 1 records of the whole
>> map.
>>
>> Can someone explain in simple English how I can solve this one ?
>>
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>
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