I'm still new at this, thanks for any help.
The following line extracts a value from a data structure:
(:value (first (filter #(= (:name %) "abc") input-attrs)))
*input-attrs* is a seq of hashes that for example looks like:
({:src "a.png", :name "abc", :value "a"} {:name "def", :src "b.gif", :value
"b"})
This is test data; the real data will have this structure but have more
hashes. My goal is to return the :value value when a specific :name value
is specified. The first line above is how to extract the :value value when
:name = "abc". The problem is that I need to extract 2 :value values for 2
distinct :name values from this one structure. The structure is moderately
expensive to construct, so while I have it built I'd like to pull
everything out of it that I need at once.
It struck me that I should pass a vector of :name values to this function
and have some sort of *for *or *map *process the vector over this
extraction. But I cannot seem to write that correctly. It also struck me
that once I can do the extractions correctly that I should probably pass a
list of hashes back that has the result, such as:
({name "abc", :value "a"} {:name "def" :value "b"})
But then that looks curiously very similar to the original structure (minus
unmatched hashes and some unneeded other values). Am I just thinking about
this "wrongly"? Thanks for any help.
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