Element.matches()
Check if an element would be selected by a particular selector or set of selectors. Returns true if the element is a match, and false when it’s not.
// Check if the first .bg-red element has the [data-snack attribute]
let red = document.querySelector('.bg-red');
if (red.matches('[data-snack]')) {
console.log('Yummy snack!');
} else {
console.log('No snacks');
}