Get browser scrollbar width

scrollbar-width.js

/**
 * Get browser scrollbar width
 * @return {Number}
 */
export const getScrollbarWidth = () => {
	const div = document.createElement('div');

   	div.style.cssText = `
		height: 100px;
		overflow: scroll;
		position: absolute;
		top: -9999px;
		width: 100px;
	`;

	document.body.appendChild(div);

	const scrollbarWidth = div.offsetWidth - div.clientWidth;

	document.body.removeChild(div);

	return scrollbarWidth;
}