Question

I’m using following code to assign id of input tag when they are cloned.Is it possible to use same find method to select more tags like tr textarea etc.

      var i=1;
      $("#bt1").click(function() {
       $("#invoice_tab tr:nth-child(2)").clone().find("input").each(function() {
           $(this).attr({
            'id': function(_, id) { return id + i },
            'name': function(_, name) { return name + i },
            'value': ''               
           });
       }).end().appendTo("#invoice_tab");
       i++;

Answer 1

Is it possible to use same find method to select more tags like tr textarea etc.

Yes… You can try it yourself…

 var i=1;
  $("#bt1").click(function() {
   $("#invoice_tab tr:nth-child(2)").clone().find("input, textarea, tr").each(function() {
       $(this).attr({
        'id': function(_, id) { return id + i },
        'name': function(_, name) { return name + i },
        'value': ''               
       });
   }).end().appendTo("#invoice_tab");
   i++;

Just make sure the id remain unique. There can not be more then one element in the page-DOM with the same id value.