message: actions/drop/DopEvent: add jsdoc comments
diff: import * as arr from '../../utils/arr';
  -export default class DropEvent {
  +class DropEvent {
  + /**
  + * Class of events fired on dropzones during drags with acceptable targets.
  + */
  constructor (dropStatus, dragEvent, type) {
  const { element, dropzone } = type === 'dragleave'
  ? dropStatus.prev
  @@ -19,6 +22,13 @@ export default class DropEvent {
  this.propagationStopped = this.immediatePropagationStopped = false;
  }
  + /**
  + * If this is a `dropactivate` event, the dropzone element will be
  + * deactivated.
  + *
  + * If this is a `dragmove` or `dragenter`, a `dragleave` will be fired on the
  + * dropzone element and more.
  + */
  reject () {
  const { dropStatus } = this.interaction;
  @@ -70,3 +80,5 @@ export default class DropEvent {
  this.immediatePropagationStopped = this.propagationStopped = true;
  }
  }
  +
  +export default DropEvent;
  