Beginning Web Development, Silverlight, and ASP.NET AJAX

CHAPTER 14 ■ JAVASCRIPT PROGRAMMING WITH ASP.NET AJAX 349
Now if you use localeFormat and pass it a format string, the output will be formatted
according to the current locale. For example, d gives MM/DD/YYYY in the United States
and DD/MM/YYYY in the United Kingdom.
var a = myDate.localeFormat("d");
Parsing a Value into a Date
The parseLocale function allows you to create a locale-specific string by specifying the
format. It takes two parameters: the date value and the format that you want the date to
be formatted in.
var a = Date.parseLocale('2007-12-1', 'yyyy-mm-dd');
Error Type Extensions
These provide extensions to the JavaScript Error objects that provide exception details
and different application compilation modes. The extension contains a number of error
types that you can raise:
Error.argument: This lets you create an Error object that represents an exception in
the arguments that you received in a function.
Error.argumentNum: This allows you to create an Error object that represents a null
exception.
Error.argumentOutOfRange: This allows you to create an Error object that represents
that an argument was out of the desired range.
Error.argumentType: This allows you to create an error that represents a type exception
error.
Error.argumentUndefined: This allows you to create an error that represents that an
argument is undefined.
Error.create: This allows you to create a free-format error with specifiable error text.
Error.invalidOperation: This allows you to create an error that declares that an
invalidOperation was hit.