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

Probably the most performative way is:

document.contains(node); // boolean

This also works with jQuery:

document.contains($element[0]); // var $element = $("#some-element")
document.contains(this[0]); // in contexts like $.each(), `this` is the jQ object

Source from MDN

Note:

• Internet Explorer only supports contains() for elements.