Function getElementRoot

core/src/utils/helpers.ts:210–212

(el: HTMLElement, fallback: HTMLElement = el)

 * do "myElement.shadowRoot!.querySelector(...)".
 */
export const getElementRoot = (el: HTMLElement, fallback: HTMLElement = el) => {
  return el.shadowRoot || fallback;
};

/**
 * Patched version of requestAnimationFrame that avoids ngzone