Method exit

src/cdk/drag-drop/drop-list-ref.ts:289–292

* Removes an item from the container after it was dragged into another container by the user. * @param item Item that was dragged out.

(item: DragRef)

   * @param item Item that was dragged out.
   */
  exit(item: DragRef): void {
    this._reset();
    this.exited.next({item, container: this});
  }

  /**
   * Drops an item into this container.