Hello everyone! Is there a preferred way of starting a ClojureScript Node.js project with figwheel and CIDER support? Something easy to bootstrap like a lein template…

@rastandy Take a look at shadow-cljs which has excellent first class support for node, No figwheel needed as it hot reloads for you. I seem to remember notes on CIDER were also somewhere in the excellent docs

@robert.law thanks, will take a look at that, but would love to use figwheel because I simply love it

anyway, thanks for the suggestion, I’ll take a look at that

@rastandy, I think Fighweel has closed the gap to shadow-cljs somewhat when it comes to node support, but shadow-cljs is lovely. To start it with CIDER support:

shadow-cljs -d cider-nrepl:0.21.2-SNAPSHOT watch app

Hi! I have a really strange js output with cljs 1.10.520 (same for 1.10.516). Part of the form is simply removed after usage of var (in compiled js):

(def init-data
  (if-let [element (.getElementById js/document "cljs-init")]
    (->> (.-textContent element)
         (transit/read transit-reader)
         (merge {:a nil
                 :b nil}))))

(defn render-app []
  (when init-data
    (swap! initial-state* merge init-data) ; <<<<<< here
    (swap! state merge init-data)             ; <<<<<< here
    (i18n/init state)
    (render-components ".cljs-app-component" components)
    (nav/init!)))

(render-app)

if(cljs.core.truth_(hb.front.entry_points.app.init_data)){ //when part
cljs.core.swap_BANG_.cljs$core$IFn$_invoke$arity$3(hb.front.state.initial_state_STAR_,cljs.core.merge,hb.front.entry_points.app.render_app();
// EOF

@il.tmfv Do you have :parallel-build enabled? (Perhaps something related to multi-threading is causing the compiler to derail on that code.)

@mfikes I’ve tried to turn it off. There is even less data in js file now 😅:

if(cljs.core.truth_(hb.front.entry_points.app.init_data)){
cljs.core.swap_BANG_.cljs$core$IFn$_invoke$arity$3(hb.front.state.initial_state_STAR_,cljs.core.merge,

That's truly bizarre 🙂

@il.tmfv make sure you're not accidentally running multiple builds

this is a common mistake I've made multiple times myself

that's the only cause I've seen for corrupted output files like that

Yeah, it smells like corruption from multiple writers

I don't think :parallel-build has anything to do w/ this

I do run it for 2 builds 🙂 But now I’ve tried for only 1 and I have the same result cljs 1.10.439 works great with 1 or 2 builds. I clean folders before each build, just in case

Also i’ve tried to inline (def init-data ...) form to get rid of ->> and if-let Result is the same. Maybe interop stuff is broken?

Well, if you can, a minimal repro in a JIRA would make it easier to sort out.

https://clojurescript.org/community/reporting-issues

Yep, I was thinking about it. Will take a look tomorrow 👍 Just tried to change init-data to

(def init-data
  (merge {:a nil
          :b nil} {})

Can anybody point me to the documentation for the js* interop macro/function/special form?

I’m trying to invoke the javascript operator <<< and this is my last resort.