so how would u suggest i do it then:at the moment i have code which checks if first name is empty. if it is then message saying "please enter first name".if it is not, i have code to check if last name is empty. if it is then message saying "please enter last name"if it is not, i have code to check if email is empty, if it is, then message saying "please enter email". if it is not then i have a do/while with a prompt for the user to enter their email again (validation against their original email input)after all of this is satisfied, i run another function.i need to be able to check if the first name and last name have numbers and if so throw an error. how could i best do this?id prefer to do it nested for each text field separately. ie check if empty then check if numbers, then if satisfied move on to last name.