department-of-veterans-affairs/vets-website

const TAB = 9;
const ESCAPE = 27;
const ENTER = 13;

function isWideScreen() {
  return matchMedia('(min-width: 768px)').matches;
}

function isEscape(e) {
  return e.key === 'Escape' || e.key === 'Esc' || e.keyCode === ESCAPE;
}

function isTab(e) {
  return (e.key === 'Tab' || e.keyCode === TAB) && !e.shiftKey;
}

function isReverseTab(e) {
  return (e.key === 'Tab' || e.keyCode === TAB) && e.shiftKey;
}

function getTabbableElements(node) {
  return node.querySelectorAll(
    'input,select,a[href],textarea,button,[tabindex]',
  );
}

function isEnter(e) {
  return e.key === 'Enter' || e.keyCode === ENTER;
}
export {
  isWideScreen,
  isEscape,
  isTab,
  isReverseTab,
  getTabbableElements,
  isEnter,
};