Hi, I created a simple blog with Luminus (SPA) but initial loading for app.js is slow. I created the project with the following command

lein new luminus blog +reitit +postgres +reagent +auth

@eliascotto94 if you did everything correctly then CLJS shouldn't even run on the server at all. you just have the .js file thats served as a simple static file. if you are actually compiling on the server then that will be rather slow yes.

Yes the /cljsbuild directory is there with app.js and /cljs-runtime so is compiled. It’s served by ring-undertow I think. So where I should look?

(defn home-page [request]
  (layout/render request "home.html"))

(defn home-routes []
  [""
   {:middleware [middleware/wrap-csrf
                 middleware/wrap-formats]}
   ["/" {:get home-page}]])

{% script "/js/app.js" %}

first of all you should be doing a release build for the JS. normally shadow-cljs release app. that would produce only a single file and no cljs-runtime dir

but it might not be related to CLJS at all and rather the droplet thing just starting the java server on demand

if thats not running continously then the startup will take a while

I have a protocol I want to extend onto all vectors. In clj, I'm extending onto clojure.lang.IPersistentVector. What's the proper type to extend onto in cljs? I see both cljs.core/IVector and cljs.core/PersistentVector but I'm not sure how to evaluate which is correct.

It's the latter

In cljs you can't extend protocols to other protocols - the latter is the concrete type though so that will do it!

https://github.com/sicmutils/sicmutils/blob/main/src/sicmutils/collection.cljc#L116

In this namespace I do a similar thing as what you're asking for maps, sequences and vectors, and these were all the parallels I could find.

This is relevant too if you want your function to work for type that has implemented the vector protocol, not just the clojure provided type: https://clojurians.slack.com/archives/C07UQ678E/p1640803248285400

thank you for the thorough information

I am trying to use npm xstyled package in a shadow cljs project. I required the package and xstyled has this import style

import { x } from '@xstyled/styled-components' 

["@xstyled/styled-components" :refer [x]]

[:> x.div ]