title: Drag-Drop that affects an input file element in Angular (2+)
body: <p>I am a student.</p>
  
  <p>-Is there a way to fill the file input with the right filename from a file drop? I've already read all the answers at <a href="https://stackoverflow.com/questions/8006715/drag-drop-files-into-standard-html-file-input">drag drop files into standard html file input</a></p>
  
  <p>However, no answer there works for Angular 4. I guess there is always a problem with Typescript I cannot see.</p>