Question

I have a nested list:

<ul>
  <li><a href='#'>stuff</a></li>
  <li><a href='#'>stuff2</a></li>
    <ul>
      <li><a href='#'>stuff3</a></li>
    </ul>
  <li><a href='#'>stuff4</a></li>
</ul>

…and want to collapse the nested ul when the li is clicked. Before I was using

$('UL LI').click(function(){
  $(this).next().slideToggle();
});

…but this obviously causes a problem when a li doesn’t have a ul nested after it. Is there a better way to do this, or is there a way for me to determine if the object returned by $(this).next() is a UL?

Answer 1

if($(this).next().is("ul")) {

}

Should do the trick. See: http://api.jquery.com/is/