polaris-glints/build/esm/utilities/is-element-in-viewport.js

Glints forked polaris react

function isElementInViewport(element) {
  const {
    top,
    left,
    bottom,
    right
  } = element.getBoundingClientRect();
  return top >= 0 && right <= window.innerWidth && bottom <= window.innerHeight && left >= 0;
}

export { isElementInViewport };