Setting a boolean attribute with jquery

Question

I understand that jquery will allow you to modify attributes with the .attr() method. There are basically two methods:

$(\'#element\').attr(\'attribute\', \'         


        

Answer 1

I use this method in jQuery

jQuery('option').attr("selected", "");

or in JavaScript:

document.querySelector("option").setAttribute("selected", "");

It's just you need to pass an empty string to just set boolean attribute.