ClavaScript

Experimental ClojureScript syntax to JavaScript compiler.

⚠️ This project is an experiment and not recommended to be used in production. It currently has many bugs and will undergo many breaking changes.

Quickstart

Although it's early days and far from complete, you're welcome to try out clava and submit issues.

$ mkdir clava-test && cd clava-test
$ npm init -y
$ npm install clavascript@latest

Create a .cljs file, e.g. example.cljs:

(ns example
  (:require ["fs" :as fs]
            ["url" :refer [fileURLToPath]]))

(println (fs/existsSync (fileURLToPath js/import.meta.url)))

(defn foo [{:keys [a b c]}]
  (+ a b c))

(println (foo {:a 1 :b 2 :c 3}))

Then compile and run (run does both):

$ npx clava run example.cljs
true
6

Run npx clavascript --help to see all command line options.

Differences with ClojureScript

• Keywords are translated into strings
• Maps and vectors are translated into objects and arrays
• assoc! and dissoc! perform in place mutation on objects
• println is a synonym for console.log
• Truth semantics of JS

License

Clava is licensed under the EPL, the same as Clojure core and Scriptjure. See epl-v10.html in the root directory for more information.