in firestore/scripts/FriendlyEats.View.js [189:201]
var rate = function() {
var after = false;
rating = 0;
[].slice.call(el.parentNode.children).forEach(function(child) {
if (!after) {
rating++;
child.innerText = 'star';
} else {
child.innerText = 'star_border';
}
after = after || child.isSameNode(el);
});
};