Calling functions from within maps

[Hector Lucero]

Why does this work:

  (map #(assoc % :sites (SITES-NAMES "theuser")) my-rows)

But this does not work:

  (map #(assoc % :sites (SITES-NAMES (:f_username %)) my-rows)

The second one gives me an arity error. Given "theuser" and (:f_username %) are the same string as argument.

[Erik Assum]

You’re missing a paren before my-rows. 

Not knowing that you do, but writing Clojure without paredit/park fee is a lot harder than without :)

Erik. 

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i farta

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[Hector Lucero]

On Sunday, March 18, 2018 at 1:18:19 AM UTC-7, Hector Lucero wrote:

Why does this work:

  (map #(assoc % :sites (SITES-NAMES "theuser")) my-rows)

But this does not work:

  (map #(assoc % :sites (SITES-NAMES (:f_username %))) my-rows)

[Hector Lucero]

On Sunday, March 18, 2018 at 1:18:19 AM UTC-7, Hector Lucero wrote:

Note:  SITES-NAMES calls another function get_users-sites-names.  The username is passed to both functions.  If I call the get_users-sites-names function and then perfom the reduce function that happens in SITES-NAMEs right from the map it works.  And that is how I have it working.  It seems that at least in this case, that when you are within a map if you call a function that calls another function you get an arity error.  Don't know why, I am totally confused on this one. 

[Matching Socks]

Why not provide a short, self-contained example that demonstrates the problem?  

And, by the way, are you using paredit or park fee?

[Sean Corfield]

As Erik said, you’re missing a paren:

 

  (map #(assoc % :sites (SITES-NAMES (:f_username %)) my-rows)

 

Should be:

 

  (map #(assoc % :sites (SITES-NAMES (:f_username %))) my-rows)

 

Sean Corfield -- (970) FOR-SEAN -- (904) 302-SEAN
An Architect's View -- http://corfield.org/

"If you're not annoying somebody, you're not really alive."
-- Margaret Atwood

 

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From: clo...@googlegroups.com <clo...@googlegroups.com> on behalf of Hector Lucero <hector...@gmail.com>
Sent: Monday, March 19, 2018 10:07:13 PM
To: Clojure
Subject: Re: Calling functions from within maps

 

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