some clojurescript macros i’ve found useful: https://gist.github.com/jdubie/c8b62e24f7072078abc3#file-macros-clj-L26-L47

I tried using the file itself as an extern but I am getting an error from closure ERROR: JSC_DUPLICATE_EXTERN_INPUT.

Does anyone have a example of creating a drop-down using sablono with ClojureScript? I can’t seem to make it work in the tag form.

I’m assuming there is a tag version of drop-down. There is a defelem for it in sablano

@tavistock: I think you don’t need to provide externs for built-in globals. They should be provided by the Google Closure compiler (https://github.com/google/closure-compiler/tree/04dd916be73f961f489906231cfb1a1ad0fd583a/externs)

@tavistock: This would also explain why you are getting the JSC_DUPLICATE_EXTERN_INPUT error.

I phrased it wrong, in the optimization :none I am calling it like (. js/window hello) and in the :advanced it gets turned to window.zz. I need it to be window.hello

@tavistock: Maybe I’m misunderstanding, but shouldn’t (js/hello) work? Like (js/alert “Hello”) would?

To add to the conversation before that: We could ask the folks at https://sameroom.io/ to maybe provide a free pro account or something like that. Used the service in the past and it can mirror rooms almost perfectly

@tavistock: you aren’t being clear on what you want to accomplish - and fundamentally what you want is a Closure thing not a ClojureScript thing

@tavistock: do you or don’t you want to export something under advanced?

yea I do want to export something under advance

then externs are irrelevant

and just muddies up your goal

read up on goog.exportSymbol

(I think that’s what it is)

the ClojureScript sugar is to put ^:export meta on the var.

if you are confused about advanced the best thing you can possibly do is spend 30 minutes on Closure docs

I was wrong. I want to use a function, so I want to import

@dvcrn Sameroom looks cool but the one I posted is just open source code that just runs a Slack bot (I think). An admin on these forums should be able to just easily install it

but when I try to I get a dup error from closure

@tavistock: the dupe error is a red herring

you are conflating issues

if you want to use some name from some other library then yes you need an externs file

I have a html page that has a script tag. I want to use a function in that script tag from cljs.

you may have an enviroment issue

https://github.com/Tavistock/neat/blob/master/externs/floppy.js

which has nothing do with what you’ve attempted

I’m starting to think so

i.e. you have duplicate externs files on the classpath

or your accidentally feeding it in twice or more

does lein automatically add a ‘externs’ path maybe

lein doesn’t know about ClojureScript, so no

i meant cljsbuild

@tavistock: I took a look at your project.clj … I suspect your problem is there, you’re using a lot of lein features … very few of which I understand.

my suggestion would be to write a simple build script

the kind that the Quick Start suggests

I just used chestnut. I was thinking the same

I suspect if you do you can pinpoint a common mistake that tooling can detect.

I’m not suggesting not using your setup. Just suggesting a way to find the problem.

Your setup is too foreign for me to actually want to investigate. Perhaps other folks have more insights.

thanks for the help

@tavistock: you might be interested in the port of core.matrix to ClojureScript that Jeff Rose is currently working on - would be very useful for neural network stuff in the browser!

@tavistock I think the only thing you are missing for your thing to work in :advanced is the actual externs reference

you have the file but don't include it anywhere

add :externs ["externs/floppy.js"] to your app target

you can remove the react preamble as well

since the page already includes react

preamble basically includes it twice

sorry not the page om.core already uses the cljsjs.react so you do not need the preamble

but your entire setup seems a lot more complex then it has to be

I don't think you need any of the server stuff

hmmm... just added lein-cljsbuild to an existing clojure project

how do I make the goog closure stuff available?

my cljs compiles....

but the goog dependency isn't fullfilled. it can't be found and definately isn't on my file system

in dev or in prod?

roberto: in either

my cljs-build config looks like this:

:cljsbuild {:builds {:main {:source-paths ["src-cljs"]
                              :compiler {:output-to "resources/js/main.js"
                                         :optimizations :advanced}}

                       :dev {:source-paths ["src-cljs"]
                             :compiler {:output-to     "resources/js/main.js"
                                        :output-dir    "resources/js/out"
                                        :source-map    "resources/js/out.js.map"
                                        :optimizations :none
                                        :pretty-print  true}}}}

I normally have a :main

also, check what main.js has in resources/js/main.js

this is an example from one of my projects:

:cljsbuild     {:builds [{:source-paths ["src/zoom_recordings/ui"]
                                           :figwheel true
                                           :compiler {:output-to            "target/classes/public/js/app.js"
                                                      :output-dir           "target/classes/public/js/out"
                                                      :asset-path           "js/out"
                                                      :optimizations        :none
                                                      :recompile-dependents true
                                                      :main                 "zoom-recordings.ui.core"
                                                      :source-map           true}}]}}

I'll have a fiddle. cheers man

@triss yeah you either need to specify a :main or manually include js/out/goog/base.js in your html

is this known error? Caused by: java.lang.NoSuchMethodError: com.google.common.base.Splitter.splitToList(Ljava/lang/CharSequence;)Ljava/util/List; can't compile minimized version

@asolovyov: no

@dnolen: I'm thinking that maybe someone overrides my guava version

looking at lein deps :tree right now

Closure needs Guava and a bunch of other things

right

cassandra-driver uses guava 14 😕

right, excluding guava there helped

thanks roberto and thheller

seems I'm nearly there

I'm serving my page up via ring.....

and I find my client.cljs file no problem but still not the closure deps

My ring server serves up /resources as /

and my main.js file from /js/main.js

unfortunately closure deps are looked for in /resources/public/js

hang on.... may do it manually as thheller suggested

@triss I think :asset-path is what you are missing then

@eraserhd: welcome, Jason

@voxdolo: thanks!

Hi! Does anyone uses internalization in clojurescript, any experience with "com.taoensso/tower" or any other library. Thanks.

does closure support loading two unrelated libs compiled with advanced compilation as separate js script tags, in the same page?

I’m getting errors in advanced compilation that looks totally unrelated to my code. in the depths of goog.object

@arohner: only if you wrap them, forgot the name of the compiler option

ah :output-wrapper set to true

otherwise you'll get all sorts of weird naming conflicts

ah, yes: https://code.google.com/p/closure-compiler/wiki/FAQ#When_using_Advanced_Optimizations,_Closure_Compiler_adds_new_var

thheller: works perfectly, thanks

Is this right? — object is a type, Object is like a protocol. So I extend-type object IFoo but (defrecord Bar Object (method [this] ...)) ?

@bojanx100: any specific question re. i18n? Tower gets the job done for me.

@stuartsierra: that’s right

thanks

And js/Object is the JavaScript constructor function for "Object"?

is there a .cljc logging library that compiles to c.t.logging and js/console.log?

@stuartsierra: yes

thanks

phew

@arohner timbre https://github.com/ptaoussanis/timbre may fit the bill?

oh, very nice

what is the equivalent of annotating things with ^java.util.{Collection, List, Map} in ClojureScript?

bah. $ lein new reagent doh;cd doh;lein figwheel Generating fresh 'lein new' Reagent project. clojure.lang.Compiler$CompilerException: java.io.FileNotFoundException: Could not locate cljs/analyzer__init.class or cljs/analyzer.clj on classpath: , compiling:(figwheel_sidecar/utils.clj:1:1) at clojure.lang.Compiler.load (Compiler.java:7142)

@bherrmann: Clojure 1.7.0 is a minimum requirement. You’re probably specifying 1.6.0 via the reagent template.

$ grep cloj project.clj :dependencies [[org.clojure/clojure "1.7.0"] [org.clojure/clojurescript "1.7.170" :scope "provided"]

I'm pretty noob

@bherrmann: figwheel in that template is a SNAPSHOT

the problem might be there

so [lein-figwheel "0.5.0-SNAPSHOT"] is pulling in 1.6, perhaps

no, certainly not

do you wanna try with lein new figwheel -- --reagent?

it's a much smaller template to diagnose

$ lein new figwheel doh -- --reagent ; cd doh ; lein figwheel

that works fine.

cool, that template is much smaller and if you want to do clojurescript, it might be all you need

once the 1.7.170 tooling changes stabilize I'll talk to bruce to update it.

yea, I'm good. THANKS