Function addElement

core/src/utils/animation/animation.ts:451–465

(el: Element | Element[] | Node | Node[] | NodeList | undefined | null)

  };

  const addElement = (el: Element | Element[] | Node | Node[] | NodeList | undefined | null) => {
    if (el != null) {
      if ((el as Node).nodeType === 1) {
        elements.push(el as any);
      } else if ((el as NodeList).length >= 0) {
        for (let i = 0; i < (el as NodeList).length; i++) {
          elements.push((el as any)[i]);
        }
      } else {
        printIonError('createAnimation - Invalid addElement value.');
      }
    }

    return ani;
  };

  const addAnimation = (animationToAdd: Animation | Animation[]) => {
    if ((animationToAdd as any) != null) {