4 ms·

Random question: Can ClojureScript be compiled in the browser? I only looked at it when it first came out and at that time the ClojureScript compiler only ran v

Random question: Can ClojureScript be compiled in the browser? I only looked at it when it first came out and at that time the ClojureScript compiler only ran via the JVM.

chrisoakman 5y ago
ClojureScript is self-hosted and thus can be compiled in a browser (see https://clojurescript.io/ https://clojurescript.io/ for an example). For most serious usage and projects you will want to use the JVM though.
kolme 5y ago
Yes, with caveats: https://clojurescript.org/guides/self-hosting https://clojurescript.org/guides/self-hosting
diggan 5y ago
I think ClojureScript has been able to compile itself since ~2015 if I remember correctly. There is some helper libraries that makes the experience nicer nowadays too, tools like KLIPSE (https://github.com/viebel/klipse https://github.com/viebel/klipse) Here are some starting points: - https://clojurescript.org/guides/self-hosting https://clojurescript.org/guides/self-hosting - https://practicalli.github.io/clojurescript/quickstart/self-hosted-clojurescript.html https://practicalli.github.io/clojurescript/quickstart/self-... - https://blog.klipse.tech/clojurescript/2016/04/04/self-host-part-1.html https://blog.klipse.tech/clojurescript/2016/04/04/self-host-...
deleted 5y ago
[deleted]
escherize 5y ago
There is a new thing, and it's kind of a toy [0]. But it lets you load clojurescript from a script tag, so there is practically no setup needed!! [0] - https://borkdude.github.io/sci-script-tag/index.html https://borkdude.github.io/sci-script-tag/index.html
- diggan 5y ago
  Worth keeping in mind that that's Small Clojure Interpreter (SCI) which while very cool, isn't ClojureScript. Seems to be running Reagent perfectly fine though, so not sure what the exact differences are, AFAIK, SCI is a subset of Clojure.
  - stingraycharles 5y ago
    Wow sci can run reagent out of the box? That’s not a small feat, excellent work @borkdude!
divs1210 5y ago
Yes. ClojureScript is self-hosting, and there are helper tools out there like klipse that make it easier to set up. A more lightweight option is borkdude's SCI (Small Clojure Interpreter) running inside HTML script tags: https://github.com/borkdude/sci-script-tag https://github.com/borkdude/sci-script-tag
lmilcin 5y ago
When I work on ClojureScript app I am actually modifying application that is running in the browser, without ever reloading the page. That would not be possible if it could not compile or at least interpret it in the browser.
- kccqzy 5y ago
  Hot reload doesn't imply compilation in the browser. For all you know lein could be recompiling via the JVM and sending updated JS files to the browser.
- benjaminjackman 5y ago
  That sounds pretty cool, is there a guide to setting that up?
  - lmilcin 5y ago
    Sure. I use fighwheel. https://figwheel.org/ https://figwheel.org/ Actually, when I develop with clojure, I typically have both backend and frontend running at the same time and I am concurrently modifying both applications without restarting them. This is way, way more convenient than having to restart application and then to bring it to a state to run your test. This is youtube video from which I learned about fighwheel: https://www.youtube.com/watch?v=j-kj2qwJa_E https://www.youtube.com/watch?v=j-kj2qwJa_E Have fun!

Random question: Can ClojureScript be compiled in the browser? I only looked at it when it first came out and at that time the ClojureScript compiler only ran via the JVM.

chrisoakman 5y ago

ClojureScript is self-hosted and thus can be compiled in a browser (see https://clojurescript.io/ https://clojurescript.io/ for an example). For most serious usage and projects you will want to use the JVM though.

kolme 5y ago

Yes, with caveats: https://clojurescript.org/guides/self-hosting https://clojurescript.org/guides/self-hosting

diggan 5y ago

I think ClojureScript has been able to compile itself since ~2015 if I remember correctly. There is some helper libraries that makes the experience nicer nowadays too, tools like KLIPSE (https://github.com/viebel/klipse https://github.com/viebel/klipse) Here are some starting points: - https://clojurescript.org/guides/self-hosting https://clojurescript.org/guides/self-hosting - https://practicalli.github.io/clojurescript/quickstart/self-hosted-clojurescript.html https://practicalli.github.io/clojurescript/quickstart/self-... - https://blog.klipse.tech/clojurescript/2016/04/04/self-host-part-1.html https://blog.klipse.tech/clojurescript/2016/04/04/self-host-...

deleted 5y ago

[deleted]

escherize 5y ago

There is a new thing, and it's kind of a toy [0]. But it lets you load clojurescript from a script tag, so there is practically no setup needed!! [0] - https://borkdude.github.io/sci-script-tag/index.html https://borkdude.github.io/sci-script-tag/index.html

diggan 5y ago
Worth keeping in mind that that's Small Clojure Interpreter (SCI) which while very cool, isn't ClojureScript. Seems to be running Reagent perfectly fine though, so not sure what the exact differences are, AFAIK, SCI is a subset of Clojure.
- stingraycharles 5y ago
  Wow sci can run reagent out of the box? That’s not a small feat, excellent work @borkdude!

divs1210 5y ago

Yes. ClojureScript is self-hosting, and there are helper tools out there like klipse that make it easier to set up. A more lightweight option is borkdude's SCI (Small Clojure Interpreter) running inside HTML script tags: https://github.com/borkdude/sci-script-tag https://github.com/borkdude/sci-script-tag

lmilcin 5y ago

When I work on ClojureScript app I am actually modifying application that is running in the browser, without ever reloading the page. That would not be possible if it could not compile or at least interpret it in the browser.

kccqzy 5y ago
Hot reload doesn't imply compilation in the browser. For all you know lein could be recompiling via the JVM and sending updated JS files to the browser.
benjaminjackman 5y ago
That sounds pretty cool, is there a guide to setting that up?
- lmilcin 5y ago
  Sure. I use fighwheel. https://figwheel.org/ https://figwheel.org/ Actually, when I develop with clojure, I typically have both backend and frontend running at the same time and I am concurrently modifying both applications without restarting them. This is way, way more convenient than having to restart application and then to bring it to a state to run your test. This is youtube video from which I learned about fighwheel: https://www.youtube.com/watch?v=j-kj2qwJa_E https://www.youtube.com/watch?v=j-kj2qwJa_E Have fun!