Get a classlist to sense check purge

classList.js

var purgeList = [];
	var container = "[data-driver-stats]";
	$( container ).each( function() { 
		$(this).find('*').each( function() {
			this.classList.forEach( l => {
				if ( purgeList.indexOf( l ) === -1 ) {
					purgeList.push( l );
				}
			})
		} );
	});
	console.log( purgeList.join(" ") );