The problem: I need to put all the elements that contain the class “has-error” inside a variable
In order to do it I need to return a string with all the elements ids concatinated.
function() {
var els = document.querySelectorAll('li.has-error');
var ids = []
for (var i = 0; i < els.length; i++) {
ids.push(els[i].getAttribute('id'));
}
return ids.join();
}