yeah, exactly.. that’s my app

Hi, is there a idiomatic way to check whether a sequence contains a nil element?

dunno, maybe (seq (filter nil? s))

Ah, that will do it. Thanks!

alternatively (some nil? s)

Oh, that looks good too, thanks!

Did anyone try Atomist with Clojure yet?

also (.contains x nil)

I think this might be the fastest of the 3, if that's something you care about

Hi guys

i'm using lein 2.7, when i try lein uberjar, it hangs up at compiling foo.bar and never terminate what this refer?

there’s a paid service that hosts private maven deps for you, i can’t remember, the name. it’s not jfrog, sonatype, cloudbees. i know the name had a j in it. anyone?

jcenter?

tha’ts not it. gah. tip of my tongue.

got it ! https://jitpack.io/

@robert-stuttaford but jfrog (artifactory) does it too right: https://www.jfrog.com/artifactory/

all the other ones you mentioned probably too 😉

services ending with .io are usually hipper

indeed

@danielstockton it doesn’t for me. It only fails if i add (stest/instrument) and change fn args:

(stest/instrument)

(t [1])

It also only fails when i instrument, [1 1] conforms to ::pattern

but it fails also with [1 1] as an argument, it looks like [1 1] gets passed to int? instead of just 1

@trybeee what version of clojure?

Clojure 1.9.0-alpha13

same as me then

@danielstockton you’re right, it fails (i forgot to call (stest/instrument) before). let’s see what #clojure-spec answers about that

trybeee danielstockton You’re nesting cats

cat is a regex op, they nest

throw a s/spec on ::pattern

(s/def ::pattern (s/spec (s/cat :a int? :b int?)))

also you may want to try #clojure-spec

knew it was something simple, thanks

I tried in spec first but thought I might increase my chances here

Do you guys know anything about Aleph?

It seems well designed, but I'm wondering if anyone here has experience with it

@bcbradley try in #aleph

hello. i have a function with [req & opt]

then i wanna pass those to another function, which is called like (.bla something req) or (.bla something req opt1)`, or (.bla something req opt1 opt2)

opt is a vector or opt1, opt2 etc

how can i do that?

apply should help, but i cannot write (apply .bla something req opt)

I'm not certain, but if .bla isn't a native clojure function (if its a javascript or java method), it might not satisfy all the interfaces that clojure functions satisfy

its possible that is causing a conflict

you could work around that with a macro

instead of having a function that takes [req & port], have a macro that takes those things

the macro can change that code into code of a different form

namely (.blah something req stuf stuf stuf stuf stuf)

if you don't have the ability to change your function into a macro, perhaps its possible to have it invoke a macro that does what I just said

I'm kind of new at this too, so take what I've said with a grain of salt

@pvinis what is the arity of the java function?

its one required

and up to 4

3 optionals

so as in, the java function is defined multiple times? or it's defined using the elipsis operator?

Hello, I have installed leiningen and cursive on my Windows 10 box and installed then the clojure koans

bfaber its https://facebook.github.io/react-native/docs/alert.html

this alert function

but when I do koans run by using the run option , I see no output at all

someone who can help me to solve this annoying problem

ohhh you're working in clojurescript... man I don't know that much about the interop there =/ there may be a better way to do it but personally I would just write (cond (= 1 (length opts)) (.alert something (first opts)) ... etc)

dnolen answered in the clojurescript channel. but thanks bfabry 🙂

it's been a long time since I used clojure. is there an up to date page on how to set up the environment (emacs + some plugin) ?

what's used in the community now?

@tdrgabi there's a bit of variety these days, but primarily Cursive (intellij plugin) and Emacs+CIDER. both have pretty decent "getting started" guides out there

thank you. I'll check out emacs + cider.

@tdrgabi I m testing Cursive now and I like it

ya personally love cursive

IM now trying to figure out how to see output of clojure koans

@tdrgabi Also checkout Prelude, from the creator of CIDER, which is basically Emacs + CIDER + everything else you need for programming, nicely set up and configured.

I was wondering, is there a construction in clojure that lets you do something like: (if-not-locked obj body else) vs (locking obj body)?

reading a Java post from 2008 by a guy named Alex Miller: https://dzone.com/articles/reentrantlock-and-dining-philo

I guess something like this would do then: https://gist.github.com/borkdude/88c3c92076709538fb394d5eae30050c

Hi, how can I filter for only the :my/kw key in the collection [{:my/kw "test" :your/kw "blah"} {:your/kw "foo"}] ? This is what I get:

(filterv :my/kw [{:my/kw "test" :your/kw "blah"} {:your/kw "foo"}]) 
=> [{:my/kw "test", :your/kw "blah"}] 

this is with "1.9.0-alpha12"

what are you trying to get?

a vector of the values for :my/kw

(map :my/kw [{:my/kw "test" :your/kw "blah"} {:your/kw "foo"}])?

=> ("test" nil)

(->> [{:my/kw “test” :your/kw “blah”} {:your/kw “foo”}] (filter :my/kw) (map :my/kw))

filter first, then map

if you change map to keep it will remove nil

oh, neat

cool

thanks

I haven’t used gen-class before to implement an interface with multiple overloaded arities, e.g. this connect method: https://maven.apache.org/wagon/apidocs/org/apache/maven/wagon/Wagon.html

What’s the correct way to go about it?

I think what I have done in the past there is instance? checks on the arguments in the implementing function

So something like

(defn connect
  ([this source & vargs]))