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

I would use the following to include the target itself if it matches the selector:

    var jTarget = $("#doo");
    var sel = '.pou';
    var jDom = jTarget.find(sel).addBack(sel).first();

Markup:

    poo
    
foo
    
pooo