kazanova84,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
$(function() {
var context = "#container", selector = "#container a";
var target = $(selector).filter(function(i,el) {
return $(context).has(el).length
}).add(context);
alert($.map(target,function(el) {
return el.tagName
}));
});
</script>
</head>
<body>
<div id="container"><a href="">link</a></div>
<div id="test"><a href="">link</a></div>
</body>
</html>