In following example event  parameter is passed  in the function .

q1)  is it optional  can we do with out it ,?

or it is good paractice to keep it there where it is.

  

   

     
   
  
  

   

     $( "a" ).click(function( event ) {
   
  
  

   

     
   
  
  

   

     alert( "Thanks for visiting!" );
   
  
  

   

     
   
  
  

   

     });
   
  
  

   

     
   
  
  

   

    });
    

    

    yours sincerely