here’s what I came up with @roberto

(let [smallest (first (sort-by :total_size my-typle))] 
  (map #(if (= % smallest) (assoc % :label "smaller") (assoc % :label "larger")) 
               my-typle))

Oh, nice. Mines was very imperative. Yours is much nicer

It didn't occur to me to sort by :total_size

Thank you

thanks I’m sure there’s a still tighter way

np

alternative:

(map
  #(assoc %1 :label %2)
  (sort-by :total_size my-typle)
  ["smaller" "larger"])

Or, perhaps better:

(map
  merge
  (sort-by :total_size my-typle)
  [{:label "smaller"} {:label "larger"}])

i think the tuple must remain in its original order

Oh, didn't know map could take two colts

yep - that’s a useful one

@roberto: Yeah, they go in as extra arguments to your mapping fn. So passing in two colls, you have to provide a fn with the signature (fn [item-from-coll-1 item-from-coll-2]).

Yeah, if the original order matters things get a little ugly.

It doesn't matter in this case, luckily

The Api I'm getting the data from doesn't specify if the first item is always the largest

So I'm just covering my butt

Never a bad idea.

Yeah, one of the items is supposed to be an audio recording, the other a video recording. Determining that based on the size

@roberto, @potetm, @jeremyraines, but here’s a somewhat nicer version:

(let [big (max-key my-tuple :total-size)]
   (map #(assoc % :label (if (= big %) "larger" "smaller”)) my-tuple))

it’s the same as @jeremyraines, but uses max-key instead of sorting the list, and moves the if inside the assoc

nice

it is the first time I’ve seen an application for max-key

thank you

you’re welcome!

any recommendations on a good place to start building a basic web project?

what do you mean? Good tutorial/resources for building web apps?

^ yes, exactly

i suppose my question was a tad vague, thanks

http://www.luminusweb.net/

I’ve never used it, but it looks like something good to start with.

ive looked at that a bit before, it does look like a nice tutorial / set of libraries

https://github.com/pedestal/pedestal looks interesting too

http://purelyfunctional.tv has a great screen cast for getting started.

oh cool

When writing a defmacro, how can you handle arguments regardless of whether they were passed as data literals or values?

For example the for macro works as I expect wrt foo :

(def foo [1 2 3])
(for [x foo] x) ;; => (1 2 3)

But in my own macro, unquoting the argument when it’s passed as foo like above would give me a Don't know how to create ISeq from: clojure.lang.Symbol exception

Works fine with the [1 2 3] literal however...