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thheller
shadow-cljs
Clojure2017–2024
thheller / shadow-cljs

shadow-cljs

ClojureScript compilation made easy

12Distinct people
14Mentions
0Explicit recommenders
2.4KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

ClojureScript compilation made easy

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 10:56:20 AM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year14 dated mentions

Observed mentions: 2017-05-21 21:48:43 UTC to 2024-05-23 05:46:44 UTC.

0123452017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 comments20172018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20202021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 5 mentions; 0 submissions, 5 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments2024

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC211
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC000
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC000
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC101
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC202
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC505
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC101
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC303

What Hacker News says

2 sources
We are using shadow-cljs https://github.com/thheller/shadow-cljs and that integrates with npm just fine. It doesn't get much easier than that I guess and if you have trouble, you can contact Thomas Heller or other people on the Clojurians Slack-channel. If I did any app or system, that could be written in Java or JavaScript (browser or Node.js) I would take Clojure or ClojureScript any day. I don't know how to match the comfort and power in a different language. If it turned out e.g. by using a profiler, I just need way better performance in some bottlenecks and after I have exhausted all options that a) a better algorithm b) better technology/ different approach such as Canvas/ WebGL you name it in addition to what Clojure(Script) performance features offer, I would perhaps consider learning to write a module in Rust/ WebAssembly or just
Read the rest
use a bit more resources (if this was e.g. a money problem). Besides embedded, really high-performance stuff, some parts of the infrastructure that need to be as efficient as possible or run without GC or need to talk to very special interfaces or a library, Clojure and ClojureScript or related dialects/ implementations are suited for pretty much everything else I can think of. We should be thinking about how to implement a Clojure-like language in more places, perhaps even without a GC but with AOT compilation + interpreter for the REPL along the way of Babashka. We should explore how to have a REPL to multiple systems at once and handle them like it was a single machine to some degree. We should be thinking, how to make a running Clojure program interruptible easily (perhaps with an extra setting), like it was a program in the shell. We should think about adding a Clojure-like language to the browser natively so that programs don't have to load it like they do now and that a browser tab could have some kind of REPL that you could authenticate and connect to over a socket. That way, you could rewrite the code of the web app at runtime if allowed by the user. And we definitely should design more APIs in much simpler way working more with data and less with invoking some specific functions. E.g. browser "history" could just be a vector/ array of maps/ objects or whatever instead of some finicky getters and setters that obscure the problem and are just another thing you have to learn to do useful work.
In 4x Smaller, 50x Faster
I definitely agree about the benefits of a mainstream language/big ecosystem when it compares to something more niche (Although ClojureScript with shadow-cljs [0] has an excellent interop story with the JavaScript ecosystem). I’m not sure I can agree with the premise that “developer diligence” is a reliable approach immutability (or any other development ideals). Maybe in a small team of like-minded devs diligence is enough, but in the large, with a multi-paradigm language that allows pretty much anything, you can be sure to see pretty much anything! [0] https://github.com/thheller/shadow-cljs
In Immutable Approaches

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