How to remove the bottom table row using script | jQuery

We have few option jQuery library lot option includes code based , 

depends on user experience 

How to remove the last row of table?

$('#tblemp tr:last').remove();

how to remove second row from the table?

$('#tblemp tr:eq(1)').remove();

Based condition on jQuery library :

$('#tblemp').each(function(){

    if($('tbody', this).length > 0){

        $('tbody tr:last', this).remove();

    }else {

        $('tr:last', this).remove();

    }

});