Core.async - Hello world!

(ns async-test.timeout.core
  (:require [cljs.core.async :refer [chan close!]])
  (:require-macros
    [cljs.core.async.macros :as m :refer [go]]))
 
(defn timeout [ms]
  (let [c (chan)]
    (js/setTimeout (fn [] (close! c)) ms)
    c))
 
(go
  (<! (timeout 1000))
  (.log js/console "Hello")
  (<! (timeout 1000))
  (.log js/console "async")
  (<! (timeout 1000))
  (.log js/console "world!"))