anchor.diff:      
       That makes sense because we transpile TypeScript to JavaScript
       <i>before</i> running the application</a>.
  -  
  +
     .l-sub-section
       :marked
         #### Transpiling in the browser
  
positive.code:     quickstart/ts/tsconfig.1.json,
      quickstart/ts/typings.1.json,
      quickstart/ts/styles.1.css,
      quickstart/ts/system.config.1.js`
    ,null,
    `app/app.component.ts, 
    app/main.ts, 
  
negative.code:     .file index.html
      .file package.json
      .file styles.css
      .file systemjs.config.js
      .file tsconfig.json
      .file typings.json
  :marked
    And here are the files:
  
  +makeTabs(`
      quickstart/ts/app/app.component.ts,
      quickstart/ts/app/main.ts,
  