Similar to jQuery .closest() but traversing descendants?

Question

Is there a function similar to jQuery .closest() but for traversing descendants and returning only closest ones?

I know that there is

Answer 1

Rob W's answer didn't quite work for me. I adapted it to this which did work.

//closest_descendent plugin
$.fn.closest_descendent = function(filter) {
    var found = [];

    //go through every matched element that is a child of the target element
    $(this).find(filter).each(function(){
        //when a match is found, add it to the list
        found.push($(this));
    });

    return found[0]; // Return first match in the list
}