Method index

src/Sortable/Sortable.js:121–125

* Returns true index of element within its container during drag operation, i.e. excluding mirror and original source * @param {HTMLElement} element - An element * @return {Number}

(element)

   * @return {Number}
   */
  index(element) {
    return this.getSortableElementsForContainer(element.parentNode).indexOf(
      element,
    );
  }

  /**
   * Returns sortable elements for a given container, excluding the mirror and