title: How to wipe dist/ directory before a build with Parcel
body: <p>I have a very simple project set up to use Parcel as the bundler. It's just the basic example from their <a href="https://parceljs.org/getting_started.html#%F0%9F%9A%80-getting-started" rel="noreferrer">Getting Started</a> guide. </p>
  
  <p>For a single build everything works fine but I noticed that for every build the javascript code is compiled under a new hash. This can result in multiple JS hashes being created in the <code>dist/</code> directory. Is there a way to clear everything from <code>dist/</code> before every build so that it only contains the latest code?</p>