anchor.diff:  
   === Build the Project
   
  -Run the REPL script:
  +Build your project and start the builtin HTTP server:
   
   [source,bash]
   ```
  -clj -m cljs.main -co build.edn -r
  +clj -m cljs.main -co build.edn -c -s
   ```
  +
  +Navigate to http://localhost:9000/index.html.
   
   Click the button. You will see that the `:bar` module gets loaded and the
   function in the other namespace gets invoked.
  
positive.code: (ns bar.core
    (:require [cljs.loader :as loader]))
  
  (enable-console-print!)
  
  (println "I'm bar!")
  
  (defn woz []
  
negative.code:             [goog.events :as events]
              [cljs.loader :as loader])
    (:import [goog.events EventType]))
  
  (println "I'm foo!")
  
  