anchor.diff:  [source,javascript]
   ```
   module.exports = {
  -  entry: './src/js/index.js',
  +  entry: './out/index.js',
     output: {
  -    filename: 'index_bundle.js'
  +    path: __dirname + "/out",
  +    filename: 'out/main.js'
     }
   }
   ```
  
positive.code: Open your browser to http://localhost:9000. Open the Developer Console, you
  should see that `React.Component` got logged.
  
  Check `out/inferred_externs.js`. You should see that `Object.Component` was
  inferred.
  
  [[overriding-foreign-lib]]
  == Overriding a Foreign Library
  
  
negative.code: 
  [source,bash]
  ```
  mkdir hello-bundler
  cd hello-bundler
  ```
  
  Create an empty `package.json` file:
  
  [source,bash]
  ```
  echo "{}" > package.json
  ```
  
  Add webpack and its command line tools:
  [source,bash]
  ```
  npm --save-dev webpack webpack-cli
  ```
  
  Create a `webpack.config.js` file:
  