Function getXULElementById

src/content/utils/elements.ts:21–26

(
  id: string,
)

// oxlint-disable-next-line typescript/no-unnecessary-type-parameters
export function getXULElementById<E extends XUL.XULElement>(
  id: string,
): E | null {
  // oxlint-disable-next-line typescript/no-unsafe-type-assertion
  return document.getElementById(id) as E | null;
}

export function isXULElement(target: EventTarget): target is XUL.XULElement {
  return 'namespaceURI' in target && target.namespaceURI === XUL_NS;