// The browsers update document.documentElement.scrollTop and window.pageYOffset
// differently as the window scrolls.
// Webkit
// documentElement.scrollTop: no update. Stays at 0
// window.pageYOffset: updates to whole number
// Chrome
// documentElement.scrollTop: update with fractional value
// window.pageYOffset: update with fractional value
// FireFox
// documentElement.scrollTop: updates to whole number
// window.pageYOffset: updates to whole number
// IE11 (same as firefox)
// documentElement.scrollTop: updates to whole number
// window.pageYOffset: updates to whole number
// Edge (same as webkit)
// documentElement.scrollTop: no update. Stays at 0
// window.pageYOffset: updates to whole number
const getWindowScroll = () => ({
  x: window.pageXOffset,
  y: window.pageYOffset
});

export default getWindowScroll;
