jquery addClass() to first position of multiple classes

Question

what it does:

$(\'p\').addClass(\'bar\');

output:

<         


        

Answer 1

function prependClass(sel, strClass) {
    var $el = jQuery(sel);

    /* prepend class */
    var classes = $el.attr('class');
    classes = strClass +' ' +classes;
    $el.attr('class', classes);
}