anchor.diff:  
   [source,clojure]
   ```
  -{:watch "src"
  - :output-dir "out"
  +{:output-dir "out"
    :asset-path "/out"
  - :optimizations :none
    :modules {:foo {:entries #{foo.core}
                    :output-to "out/foo.js"}
              :bar {:entries #{bar.core}
  -                 :output-to "out/bar.js"}}
  - :browser-repl true
  - :verbose true}
  +                 :output-to "out/bar.js"}}}
   ```
   
   Now make an `index.html` file:
  
positive.code: 
  === Build the Project
  
  Run the REPL script:
  
  [source,bash]
  ```
  clj -m cljs.main -co build.edn -r
  ```
  
  Click the button. You will see that the `:bar` module gets loaded and the
  function in the other namespace gets invoked.
  
negative.code:             [goog.events :as events]
              [cljs.loader :as loader])
    (:import [goog.events EventType]))
  
  (println "I'm foo!")
  
  