anchor.diff:          reagent {:mvn/version "0.10.0" :exclusions [cljsjs/react]}}}
   ```
   
  -Change your source file to following:
  +Change your source file to the following:
   
   [source,clojure]
   ```
  
positive.code: clj -m cljs.main -co build.edn -v -c -s
  ```
  
  Let's verify that it worked:
  
  [source,bash]
  ```
  clj -m cljs.main -s
  ```
  
  Open your browser to http://localhost:9000. Open the Developer Console, you
  should see that `React.Component` got logged.
  
  
negative.code: clj -m cljs.main -co build.edn -O advanced -v -c -s
  ```
  
  That's it!
  