title: switch-case with return and break
body: <p>Just out of curiosity, I often see situations like:</p>
  
  <pre><code>switch(something) {
      case 'alice':
          return something;
      break;
  }
  </code></pre>
  
  <p>Where the <code>break</code> seems to be completely unnecessary, is there any reason for it to be there anyway?</p>