Function getFirstChildElement

packages/react/src/TreeView/useRovingTabIndex.ts:167–170

(element: HTMLElement)

}

export function getFirstChildElement(element: HTMLElement): HTMLElement | undefined {
  const firstChild = element.querySelector('[role=treeitem]')
  return firstChild instanceof HTMLElement ? firstChild : undefined
}

export function getParentElement(element: HTMLElement): HTMLElement | undefined {
  const group = element.closest('[role=group]')