Thank you for your input Thomas.
All replies have definitely been very useful :)
Cheers,
Ryan
On Tuesday, December 10, 2013 1:57:38 PM UTC+2, Thomas Heller wrote:
>
> Oh nvm, just saw that it was suggested before.
>
> But maybe this is new:
>
> (def m
> {"outerKeyA" {:innerKeyA {"string id" {:foo 1 :bar 2}}}
> "outerKeyB" {:innerKeyB {"string id" {:bar 5 :baz 10}}}})
>
> (defn nested-seq [m]
> (for [[outer-key collections] m
> [collection-name collection] collections
> [string-id data] collection]
> {:outer-key outer-key :collection-name collection-name :string-id
> string-id :data data}
> ))
>
> (pprint (nested-seq m))
>
> ;; produces
> ({:outer "outerKeyA",
> :collection-name :innerKeyA,
> :string-id "string id",
> :data {:foo 1, :bar 2}}
> {:outer "outerKeyB",
> :collection-name :innerKeyB,
> :string-id "string id",
> :data {:bar 5, :baz 10}})
>
>
>
> for list comprehensions behave like doseq except that they return whatever
> the body does, thus letting you move your side effects somewhere else.
>
> Maybe this helps,
> /thomas
>
> On Tuesday, December 10, 2013 12:48:56 PM UTC+1, Thomas Heller wrote:
>>
>> FWIW you can simplify the nested doseqs like this
>>
>> (doseq [[outer-keys collections] m
>> [collection-name collection] collections
>> [string-id data] collection]
>> ;; do stuff with the above
>> )
>>
>> HTH,
>> /thomas
>>
>>
>> On Wednesday, December 4, 2013 12:05:14 AM UTC+1, Ryan wrote:
>>>
>>> Hi all,
>>>
>>> I am trying to figure out a better way to loop the following map than
>>> using nested doseq. The map has the following structure:
>>>
>>> (def m
>>>> {"outerKeyA" {:innerKeyA {"string id" {:foo 1 :bar 2}}}
>>>> "outerKeyB" {:innerKeyB {"string id" {:bar 5 :baz 10}}}})
>>>
>>>
>>> So, right now i am doing the following:
>>>
>>> (doseq [[outer-keys collections] m]
>>>> (doseq [[collection-name collection] collections]
>>>> (doseq [[string-id data] collection]
>>>> ;; do stuff with all the above
>>>> )))
>>>
>>>
>>> Is there a more idiomatic/better way to do deeply nested
>>> iterations/traversal of map of maps?
>>>
>>> Thank you for any replies!
>>>
>>> Ryan
>>>
>>>
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