The arity property represents the number of declared arguments a function expects to receive.
The arity property is valid when the language attribute of the script tag is set to JavaScript1.2.
<html> <body> <script lanuguage="JavaScript1.2"> <!-- function subtract(first, second){ var result = first - second; return result; } document.write("arity = " + subtract.arity + "<br>") document.write("The result of the subtract function is: " + subtract(4,3)); --> </script> </body> </html>
