argument_count

This read-only variable returns the number of "arguments" that are passed through to a script function or a method. Normally used in conjunction with an argument array (argument[0...15]) to permit varying input arguments for a given function.

NOTE: This isn't strictly required any more and is provided for legacy support more than anything else. All user-defined functions will accept variable arguments, and any argument passed into a function that is not part of the named inputs will be initialised to undefined by default, which can be checked using the is_undefined() function.

Syntax:

argument_count;

Returns:

Integer

Example:

function my_array()
{
var i, arg;
for (i = 0; i < 5; i += 1;)
   {
   if argument_count > i
      {
      arg[i] = argument[i]
      }
   else
      {
      arg[i] = -1;
      }
   }
}

The above code uses the argument_count variable along with the argument array to initialize variables, and is an example of how to permit a user-defined function to accept a variable number of arguments.