analytics.js

        /*
            Track form element events
        */
        trackFormEvents: function(target) {
            $(target).on('focus click change', 'input, select, button', function(e) {
                var data = {
                    category: 'Form events',
                    action: e.type,
                    label: e.target
                };
                console.log(data);
                analytics.trackEvent(data);
            });
        },