professional-javascript-14-DebugExample4.htm / htm
<html> <head> <title>Debug Example</title> <script type="text/javascript"> function divide(iNum1, iNum2) { if (arguments.length != 2) { throw new Error("divide() requires two arguments."); } else if (typeof iNum1 != "number" || typeof iNum2 != "number") { throw new Error("divide() requires two numbers for arguments."); } return iNum1.valueOf() / iNum2.valueOf(); } alert(divide("a")); </script> </head> <body> <p>This page throws a custom JavaScript error.</p> </body> </html>
(C) Æliens 20/2/2008
You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.