HTMLInputElement: webkitEntries property
  The read-only webkitEntries
  property of the HTMLInputElement interface contains an array of file
  system entries (as objects based on FileSystemEntry) representing files
  and/or directories selected by the user using an <input> element of
  type file, but only if that selection was made using drag-and-drop:
  selecting a file in the dialog will leave the property empty.
  The array can only contain directories if the
  webkitdirectory property is
  true. This means the <input> element was configured to
  let the user choose directories.
    Note: This property is called webkitEntries in the specification due to its
    origins as a Google Chrome-specific API. It's likely to be renamed someday.
  
Value
  An array of objects based on FileSystemEntry, each representing one file
  which is selected in the <input> element. More specifically, files are
  represented by FileSystemFileEntry objects, and, if they're allowed,
  directories are represented by FileSystemDirectoryEntry objects.
Examples
  This example shows how to create a file selection <input> element
  and process the selected files.
HTML
html
<input id="files" type="file" multiple />
JavaScript
js
document.getElementById("files").addEventListener("change", (event) => {
  event.target.webkitEntries.forEach((entry) => {
    /* do stuff with the entry */
  });
});
  Each time a change event occurs, this code iterates over the selected
  files, obtaining their FileSystemEntry-based objects and acting on them.
Specifications
| Specification | 
|---|
| File and Directory Entries API # dom-htmlinputelement-webkitentries | 
Browser compatibility
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