ClojureScript compiler has started to behave weird... I have an already established clj/cljs project and today after some work CLJS compiler started to emit JS code which results in:

Uncaught TypeError: Cannot read property 'call' of undefined

my_app.core.init_BANG_.call(null);

care to share more details? what build tool(s) / system are you using? what settings are you passing to the google closure compiler?

Sorry people, it was my browser caching... CLJS compiler does its job well as usual. @akiroz: (it's not relevant now) lein + cljsbuild + figwheel

When cloning the cljsjs project over https, does anybody else get a timeout? I had to use git/ssh to clone it.

@dominicm: I think it’s Github that’s having troubles. Just had a timeout as well pushing to a repo

https://status.github.com/

19:16 WESTWe're investigating reports of connection issues on GitHub.

leave no trace eh

@mattsfrey: I want to read the docs and maybe ask again. idk what I’m missing 🙂

anyone know how to disable a warning in just one place? Is there a comment-based annotation to disable it or something?

how is this even possible? (prn order-id (first (keys @orders)) (= order-id (first (keys @orders))) (get @orders order-id)) prints 1834 1834 true nil — ???

and yes, @orders is a sorted map and its first element isn't nil

@pbiggar: which kind of warning?

@anmonteiro: only checked status which was up at the time. I wondered if maybe size was the problem. Makes sense though.

@si14: undeclared var

@si14: just because you have a key defined doesn't mean it's associated value isn't nill

which is what that last call queries

all the previous are just calling keys

@mattsfrey: yep, it can be the case, but we can check this with some "guard" value like here https://gist.github.com/si14/9cf2c9f75048124989cdfd9ef5272169

I'm probably missing something, but I can't see why exactly the key isn't found there

ah, I see

explanation here: https://gist.github.com/si14/9cf2c9f75048124989cdfd9ef5272169 apparently you can provide any function as a comparator in CLJS. If you screw up and provide e.g. keyword as a comparator, the map will be displayed properly, but all attempts to get an element from it will fail

not sure if it's a proper behaviour, it's totally unexpected

interesting

Clojure handles this properly: ClassCastException clojure.lang.Keyword cannot be cast to java.util.Comparator clojure.core/sorted-map-by

should I file this into CLJS's JIRA?

Asked this question last week, but didn’t really get an answer: for those using writing queries or pulls in cljs land, which then get applied server-side to datomic, how are you addressing issues around authorization, permissions, scoping, etc?

I have a js function which returns an object with some values. Now I want to merge these values with an existing js object. This object can't be transformed with js->clj. How could I realise this?

@danielgrosse: (js/Object.assign destination source)?

Ah thank you.

how does one do recursive reference in cljs?

I’m interested in doing my side project in state-of-the-art CLJS, but I can’t figure out what the right way to go about setting up my dev environment is.

I was surprised to find that I couldn’t require clojure.spec in a CIDER cljs repl.

I assume that’s my screw-up, ‘cause I’m pretty sure cljs has spec….

@mathpunk: until the next CLJS release you’ll have to require cljs.spec

Ah ha!

it’s not yet up to date with Clojure 1.9 alpha 10 though