find() and attr() in prototypejs

Question

What are equivalent of jQuery function find() and attr() in prototypejs?

Could someone help me to convert this code using prototypejs?

var className = $(this).find('.myBtn').attr('class');
$(this).find('.tab').attr('class', className + ' current');

Thanks in advance!

Answer 1

For others searching and landing here: I think Prototype's Element.select() would be a better fit as a jQuery $.find() equivalent.