Yep, that's why I always demand that if you're not going to use curlies, you make it a one-liner. // okay if (!isActive) $parent.toggleClass('open');

Yep, that's why I always demand that if you're not going to use curlies, you make it a one-liner. // okay if (!isActive) $parent.toggleClass('open'); // not okay if (!isActive) $parent.toggleClass('open'); That way you know when you change it to two lines, you have to add curlies.