How to clone a tr with unique tr id?

I am cloning a tr like below.

   $tr    = $('#dummyTr');
   var $clone = $tr.clone();
   $clone.find(':text').val('');
   var cloned = $tr.after($clone);

but I want clone with tr id like this <tr id="clone-1">
ihave scene lots of method but every one is assigning it to tdbut i need assign it to trand i did not find any method any help

>Solution :

you can assign the id after you clone an object:

var $clone = $('#dummyTr').clone();

$clone.prop('id', 'clone-1');