hello, all. I’ve been developing an app using lein and figwheel pretty seamlessly, but now I’m trying to make a non figwheel build and can’t seem to get goog/base.js, cljs_deps.js into the ;asset-path, it is always empty after I run “lein cljsbuild once target”… is there another command i should run to get those built/copied?

@brthrjon Would it be possible to share the build configurations? (cljsbuild+figwheel)

From my experience lein cljsbuild once ... would copy stuff in the asset path so suspecting something with the configuration

@iku000888 here is the target i’m invoking, thanks… is this enough?

{:id “qa” :source-paths [“src/cljs”] :compiler {:main viime.core :foreign-libs [ {:file “src/easyrtc/socket.io.js” :provides [“socket.io.js”]}, {:file “src/easyrtc/easyrtc.js” :provides [“easyrtc.js”] :requires [“socket.io.js”]} ] :output-dir “resources/public/js/compiled/qa” :asset-path “js/compiled/qa” :output-to “resources/public/js/compiled/app.js” :optimizations :none}}

thanks in advance

@brthrjon I was fixing issues like this in my code for the last couple of days. Eyeballing this against mine, I think you just need to add out to your :asset-path. Here’s mine:

:output-to            "../../public/build/app.js"
                    :output-dir           "../../public/build/compiled/out"
                    :asset-path           "js/compiled/out"

@dnolen I was watching one of your talks for last year, you mentioned that in ViennaJS meetup there was a talk about a team moving away from js to elm to Clojurescript

I couldn't find that talk, do you remember the title ?

@lxsameer that was me 😉 there you go https://www.youtube.com/watch?v=Q6Q5D6mI-34&t=168s

thanks man

@philippmarkovics great talk man kudos

thanks

@philippmarkovics did you guys moved to om next ?

nope, we stayed with reagent and re-frame (and looking at re-posh)

Good

Is there a slideshow/presentation lib that is popular for clojure? Something like revealjs

asked on IRC, but perhaps this is a better venue: I have a question about advanced optimisation w/ reagent - am running into trouble with google closure's renaming - I've narrowed it down to this call: (defn get-dom-width [elt] (.log js/console "gdw:", (.getBBox (r/dom-node elt))))

the ".getBBox" is not found - is there an easy fix? - I don't understand how to set up an externs file for this

but what is .getBBox what library provides that?

it's part of all SVG elements, IUC - I'm using it on a <text ...>...</text>

@jcw Doesn't doesn't sound like problem with renaming, if the error mentions .getBBox

Did you check that elt is non-nil?

the error msg is Uncaught TypeError: tq(...).Xd is not a function

it works with opt = none

Okay. Svg externs are available somewhere.

called from a :component-did-mount

https://github.com/Hunga1/svg-externs/blob/master/svg.js

Would make sense to package this at Cljsjs

ahhhh! - thanks, I'll check

Closure contrib folder also has one, this seems to be more recent: https://github.com/google/closure-compiler/blob/master/contrib/externs/svg.js

\o/ - :externs ["svg.js"] works - terrific, many thanks for your help!!!

^ I realised this above question might be better for this channel, because functions like instance don't work the same between clj and cljs and maybe type has similar issues :/

@daiyi type just returns the constructor function in ClojureScript

str will bottom out on .toString implementations

pr-foo fns print as it would at the REPL

so try (pr-str (type []))

!!! that works perfectly, thanks a bundle \o/

ah, I like this description of pr-str: "you can think of pr-str as the inverse of read-string, turn string into symbols"

pr-foo stuff is supposed to print “readably”, meaning you could feed it back into the reader (which could then pass that result to something else like the ClojureScript analyzer)

@daiyi note this trick won’t work for JavaScript in general, just ClojureScript deftypes and defrecords (which are just deftypes with defaults)

should be good for my purposes (: thanks for the details!

I'm having a hard time getting cider to jack into a repl running in a lein figwheel project. Is there somewhere I can look to try to get those to talk to each other, or is there an editor that it might be worth trying out (like atom or lighttable) for the sake of clojurescript development with figwheel and an in-editor REPL?

@suskeyhose Not sure if this is the answer, but it sounds like you might want to try cider-connect rather than jack in

Ah, okay. Thanks!

has anybody attempted to spec the cljs ast yet?

@bbloom not aware of that, there’s a ticket for that, was a bit stalled on 1.9 release - maybe the spec.alpha breakout means we can proceed but I haven’t looked into that

mostly just curious

I noticed that in cljs the specs definition seems a bit eager, when I try to use definitions that are still pending to load it fires an error saying that the given spec doesn't exists (because of load order), I remember someone talking about this here in past, is that being tracked?

@wilkerlucio not sure what you mean - just supply something minimal that doesn’t work in ClojureScript (and works in Clojure) and report that

@wilkerlucio Were you perhaps recalling this one? https://dev.clojure.org/jira/browse/CLJS-2275

@mfikes in my case it's simpler than that, just basic s/def, ok, I'll try to create a minimal case to exemplify

What’s the best way to use the clojurescript on master in order to get the @cljs-oss/module-deps/index.js fix mentioned yesterday to @petterik?

I'm having some trouble with extend-protocol / extend-type in cljc code. What's the best way to do something like this:

(extend-protocol parse-dates
  #?(:clj java.lang.String :cljs string)
  (parse-date [date] (format/parse const/date-formatter date))
  (parse-datetime [date] (format/parse const/date-time-formatter date))
  (parse-date-at-time [date] (format/parse const/date-at-time-formatter date))

  #?(:clj org.joda.time.DateTime :clj function)
  (parse-date [date] date)
  (parse-datetime [date] date)
  (parse-date-at-time [date] date))

For reference line 25 is the (extend-protocol parse-dates line.

is there any attempt to write an alternative to react or preact in pure clojurescript ?

@lxsameer just found this on google: https://github.com/brandonbloom/cljs-vdom

doesn’t seem active though

I'm no expert on UI, But React contains some features which are not necessary and by creating an alternative in cljs we can take advantage of all the good features which cljs offers

but i'm sure that people already thought about this, and there might be a good reason which there is no pure cljs alternative

and I really like to know the reason

probably the same reason people don't go reinventing Java libraries in Clojure - if a well-tested, well-documented library already exists, not much point redoing it unless there are exceedingly good reasons for doing so. otherwise, it could just be that no one has cared to.

if you wanted to, though, writing a wrapper around (or port of), say, https://github.com/snabbdom/snabbdom couldn't hurt