Answers for "jquery update attribute"

jquery replace attribute

$("#trId").attr("filterCol", newValue);

jquery set att

$input.attr("attributeName", "attributeValue");

jquery replace attribute

$(newRow).find('[id*="rules"]').each(function(){
    // Update the 'rules[0]' part of the name attribute to contain the latest count 
    $(this).attr('name',$(this).attr('name').replace('rules\[0\]','rules\[$count\]'));
});