@material-ui/core/esm/Modal/isOverflowing.js

React components that implement Google's Material Design.

import ownerDocument from '../utils/ownerDocument';
import ownerWindow from '../utils/ownerWindow';
export function isBody(node) {
  return node && node.tagName.toLowerCase() === 'body';
} // Do we have a vertical scrollbar?

export default function isOverflowing(container) {
  var doc = ownerDocument(container);
  var win = ownerWindow(doc);

  if (doc.body === container) {
    return win.innerWidth > doc.documentElement.clientWidth;
  }

  return container.scrollHeight > container.clientHeight;
}