title: communicating with data or methods in vue and addEventListener
body: <p>I'm having trouble communicating with my data or methods with this code,</p>
  
  <pre><code>created() {
    document.addEventListener( 'touchstart', function( e ) {
      this.myData = e.changedTouches[ 0 ].screenY
    }
  }
  </code></pre>
  
  <p>I'm guessing that it's because of the function's scope, .this doesn't work inside the function, but then how do I communicate with my data or activate any methods outside of the event listener function then?</p>