I’ve a little curious about map destructing, why design the values to be followed by keywords other than in reverse order? for example (let [{key :key} {:key 'hello}] key ) other than (let [{:key key} {:key 'hello}] key)?

You almost never see that format (unless you need to rename the variables that are bound). Normally you'd see (let [{:keys [key]} {:key 'hello}] key)

both options are weird

the other one is weird because it reverses the ordering of names and values in normal let bindings

That is the reasoning - local symbols being bound are kept on the left

It's tempting when learning to reason from sequential destructuring that it's matching shapes or something but you should let that idea go (I had the same struggle)

more practically, a map literal is a map, so for a binding like (let [{a :a b :a} {:a 1}] ...), if the syntax had the keys and values reversed it wouldn't work

And the :as, :keys, :strs, and :syms features would look much weirder the other way

hmm, any ideas how best to do this? I have n clojure.core.matrixes of identical dimensions. I want to generate a matrix where each element is a sequence of all elements in the inputs matrix at that position.

The only way I can think of doing this is sth like

clojure
(let [fstm (first matrices)]
  (for [row (range (row-count fstm))]
    (for [col (range (column-count fstm))]
      (map (mget row col) matrices))))

but that seems suboptimal

of course I just realised emap like map takes a variable # of args

so I can just (apply emap:)

(apply mat/emap (fn [& els] els) mats)

So what's the sanest way to call SOAP interfaces with clojure?

Hi! Is there any tool/lib to graph the function calls in a codebase?

I mean something with graphviz with arrows from callee to called, and preferably with namespaces as boxes

I tried googling but only found broken stuff

Use case is to have a visual hint to know if there is any dependency mess/namespace that could be factored out

@nilrecurring I have a half-baked one: https://github.com/gfredericks/clj-usage-graph

might've been in your collection of "broken stuff" I suppose

hello, can anyone please tell me how to configure build.boot so changes to backend are watched and system is auto reset?

I work on https://github.com/juxt/edge

it has clojurescript auto rebuild and reloaded but not backend

when I connect via nrepl and do: (reset)

then the backend reloaded as expected

how can I have it automatically?

@lambder, probably better to ask in the #C053K90BR channel

thaks

Hi, gang, I alphabetize my dependencies and ns requires. Any compelling reason not to do this? Basically, not sure how/if they cascade.

it should be fine; if there's an ordering sensitivity that indicates a bug somewhere

That’s kind of what I’ve been assuming.