jQuery ancestors using jQuery objects

Question

I'd like to check ancestry using two jQuery objects. They don't have IDs, and are only going to be available as jQuery objects (or DOM nodes if you called get()). jQuery's is() only works with expressions, so this code would be ideal but will not work:

var someDiv = $('#div');

$('a').click(function() {
    if ($(this).parents().is(someDiv)) {
        alert('boo');
    }
}

Just want to see if one element is a child of another and I'd like to avoid stepping back into DOM land if possible.

Answer 1

You can use the index() method to check if an element exists in a list, so would the following work?

var someDiv = $('#div');

$('a').click(function() {
    if ($(this).parents().index(someDiv) >= 0) {
        alert('boo');
    }
}

From #index reference.