How do I check whether a jQuery element is in the DOM?

Question

Let\'s say that I define an element

$foo = $(\'#foo\');

and then I call

$foo.remove()

from some event. My

Answer 1

jQuery.fn.isInDOM = function () {
   if (this.length == 1) {
      var element = this.get(0);
      var rect = element.getBoundingClientRect();
      if (rect.top + rect.bottom + rect.width + rect.height + rect.left + rect.right == 0)
         return false;
      return true;
   }
   return false;
};