SyntaxError: missing formal parameter

Question

I have some errors with my code. Maybe someone could help me. I am getting this error:

SyntaxError: missing formal parameter
function col(10,10){

And this is my code:

<script type="text/javascript">
   function col(<?=$result['seats_count']?>,<?=$result['booked']?>){
       if((<?=$result['seats_count']?>><?=$result['booked']?>))$('.table.table-bordered.booking tbody tr').css("background-color","#f55");
   };
</script>

Answer 1

A FormalParameterList is a comma-separated list of Indentifier tokens.

Identifiers can only begin with an IdentifierStart:

IdentifierStart ::

• UnicodeLetter

• $

• _

• \ UnicodeEscapeSequence

Identifiers cannot begin with a number, so 10 is not a valid formal parameter. In creating your col function code, your PHP code must produce formal parameter names that each begin with a letter (or one of the other valid beginning characters, as above).

Answer 2

Defining a function and calling it are 2 separate acts:

// 1. Define a function
function col(seatsCount, booked) {
    if(seatsCount /*some operator*/ booked) {
         $('.table.table-bordered.booking tbody tr').css("background-color","#f55");
    }
}
// 2. Call the function
col(<?=$result['seats_count']?>, <?=$result['booked']?>);