@qqq Not that I'm aware of.

----  Could not Analyze  src/shyster/core.cljs   line:17  column:3  ----

  clojure.lang.Keyword cannot be cast to clojure.lang.IObj
 

16  (defn log-from-channel [ch]
  17    (go (log (<! ch))))
        ^--- clojure.lang.Keyword cannot be cast to clojure.lang.IObj

any ideas?

(:use-macros 
               [clojure.core.async :only (go <!)])

[org.clojure/clojure "1.8.0"]
                 [org.clojure/clojurescript "1.9.542"]
                 [org.clojure/core.async  "0.3.443"
                  :exclusions [org.clojure/tools.reader]]

@valyagolev wrong macros, you want cljs.core.async.macros

this worked! thanks

Hello all, how do I iterate with this (.querySelectorAll js/document ".mdc-ripple-surface:not([data-demo-no-js])")

?

array-seq

Should the closure-library work in NodeJS? Seems goog.net.DefaultXmlHttpFactory.createInstance relies on XMLHttpRequest being present, which it isn’t in Node

@grav those aren’t supposed to work no. most of it is safe to use but the browser specific stuff isn’t

Suppose I want to build a om.next application without using IQuery (by passing all props to children explicitly, etc., just like in om.core: Can I use om/transact! for mutations safely? Initial tests tell me I can, although I get scary warnings like Invariant Violation: transact! should be called on a component that implements IQuery or has a parent that implements IQuery

@the-kenny try #om as well, you might get a response there?

@danielcompton Yeah maybe

@thheller Ok, thanks, I won’t make a bugreport then 🙂

I’m using funcool/httpurr. Wonder if a PR regarding nodejs compatibilty would make sense? What do the funcool peepz think?

Hmm, or maybe it does have node compatibility, and I’m just doing something wrong …

Indeed I am, httpurr works fine with node, as long as the correct client is used 🙂

Hi. Some time ago I have read about a ClojureScript REPL which runs in a browser and is shared between multiple users. Anyone knows which one this could be? Tank you!

@witek http://crepl.thegeez.net ?

So does anyone have any clues on how I'd generate a thumbnail of a webpage from a link?

@alice https://medium.com/@dschnr/using-headless-chrome-as-an-automated-screenshot-tool-4b07dffba79a

you can write that in CLJS of course 😉

https://lambdaisland.com/episodes/testing-clojurescript

From cljs-testing docs: > NOTE: You cannot have more than one async test per deftest form or only the first one will run Any ways to get around this apart from creating more deftests?

Maybe creating a deftest' macro that will generate a deftest for each sub-expression?

not going to change anything around async test macro

“You cannot have more than one async block” is really what it means

you can have as many testing assertions as you like

Yes. I wasn’t planning on adding deftest' to Clojure, just wondering if a home-made macro would do the trick.

The thing is that my tests run both for clj and cljs, so I try avoiding having to rewrite them for the sake of cljs.

They’re executed synchronously in clj, though.

@grav it could work, just depends on how you’re writing them so that they could be shared reasonably

@dnolen Something like this?

(defmacro deftest' [name & body]
          `(do ~@(->> (interleave (repeat `deftest)
                                  (repeat (symbol (str name "_" (gensym))) )
                                  body)
                      (partition 3))))

(macroexpand-1 '(deftest' my-test (is (= 2 2)) (is (not= 2 3))))
=> (do (clojure.test/deftest my-test_G__49180 (is (= 2 2))) (clojure.test/deftest my-test_G__49180 (is (not= 2 3))))

something like that yes

Cool!

I know I can’t use resolve in cljs in runtime due to :advanced compilation. But is there a way to accomplish a similar thing it in a macro? In theory using it in a macro would address the munging problem since the macro is expanded before the cljs->js compilation step?

@vikeri already exists in the latest release

and yes, it’s advanced compilation safe

it’s not dynamic though

you can’t pass resolve a variable

right

Ok, great timing! When was it added?

@vikeri https://github.com/clojure/clojurescript/commit/3438f205b6b692f64af5d3f15b34a0e223363fa4

what is the current status of cljs + https://github.com/mikera/core.matrix ?

do we have ndarray + blas for cljs yet ?

Is there a convenient way to export a compiler environment from clojurescript and feed it into a bootstrap-cljs environment? That would lock me out of advanced optimizations on the cljs side -- would it be better to send selected namespaces as cljs text to the browser for compilation by bootstrap-cljs?

I guess the latter sounds less complicated, so I guess I'll attempt that first.

@richiardiandrea Can you guess the context of my question? 🙂

are you talking about sending the state remotely? I have always had this idea but never realized it...and yes...what you are doing is super cool 😄 😄 🆒

@chouser the design more or less was designed around that

since bootstrapped benefits from analysis caching too

that’s all the analysis caches are - partitioned compiler state by namespace

compiler state -- basically I've got a namespace (just one for now, but ...) that is currently compiled by clojurescript via boot that I'd like to have available in the replumb repl for autocomplete, redefining, etc.

it’s also why eval is async, so you can sort out what parts you need to get

@chouser we already emit analysis caches per ns so you can just use that, either EDN or Transit

this is why Planck & Lumo can boot quickly

the compiler doesn’t do anything, it just evals JS and reads analysis cache

@chouser FWIW: https://github.com/anmonteiro/lumo/blob/master/src/cljs/snapshot/lumo/common.cljs#L21

Just like David said, Lumo lazy-loads the analysis cache

as part of the (Boot) build process we partition those core caches into smaller things that we load as needed: https://github.com/anmonteiro/lumo/blob/master/build.boot#L102

in this case we call Node fs functions, but you can easily modify it to do a network request or something

It's really amazing what you folks have done. I really don't understand what I'm doing, but nevertheless I've got clojurescript running beautifully in the browser, even with source maps.

is the figwheel kind of facility available to non clojurescript stacks for front end development ? How much of a big deal it is really to have figwheel for your ui development. I have not done any UI development, so, I dont know. But, I get the feeling that it is a "big deal" that folks who are looking to choose a stack should really need to sit and take notice ..

How do I sell clojureScript to someone looking at node/angular etc ?