Vanilla JS .parents()

Element.prototype.parents = function (selector) {
    var parent = this.parentElement;

    var id = selector.match(/#[^#\.]+/);

    if (id instanceof Array) {
        id = id[0].replace('#', '');

        while (parent.id != id && parent !== null) {
            parent = parent.parentElement;
        }

        return parent;
    }

    var name = selector.match(/^[^#\.]+/);
    var classes = selector.match(/\.[^#\.]+/g);

    while (parent !== null) {
        if (name instanceof Array && parent.nodeName != name[0].toUpperCase()) {
            parent = parent.parentElement;
            continue;
        }

        if (classes instanceof Array) {
            var containClasses = true;

            classes.forEach(function (c) {
                if (!parent.classList.contains(c.replace('.', ''))) containClasses = false;
            });

            if (!containClasses) {
                parent = parent.parentElement;
                continue;
            }
        }

        break;
    }

    return parent;
};