_getScrollbarWidth.js

export const getScrollbarWidth = () => {
  const scrollDiv = document.createElement('div');

  scrollDiv.style.cssText = `
    position: absolute;
    top: -9999px;
    width: 50px;
    height: 50px;
    overflow: scroll
  `;

  document.body.appendChild(scrollDiv);
  const scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth;
  document.body.removeChild(scrollDiv);

  return scrollbarWidth;
};