jQuery: advanced class search

by gabrieleromanato

HTML

<div id="test" class="test-1 test-2 test-3"></div>

JavaScript

var $class = $('#test').attr('class');
var $classes = $class.split(' ');
var myClass = '';

$.each($classes, function(i, v) {
    var $cls = v;
    var parts = $cls.split('-');
    if(parts[1] == '3') {
        myClass = $cls;
    }
});

alert(myClass); // test-3