Beginning Web Development, Silverlight, and ASP.NET AJAX

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CHAPTER 14 ■ JAVASCRIPT PROGRAMMING WITH ASP.NET AJAX
Boolean Type Extensions
The Boolean language extensions provide for Booleans in JavaScript in a manner that
may be more familiar to .NET programmers. In addition to the traditional Boolean enumerations
of true and false, it provides a shortcut to instantiating a Boolean value
through the parse function.
So, in JavaScript, you can now create Boolean objects in the following manner:
Var a = new Boolean(true);
Var b = new Boolean(false);
If (a==true)
// Do Something
Var c = Boolean.parse("true");
If (c == true)
// Do Something else
Date Type Extensions
ASP.NET AJAX provides a number of extensions to the Date object in JavaScript through
its Date class. This gives extensions around locale specifics and easier instantiation of
dates from strings.
Formatting a Date
The format function on the Date class provides a way to format a Date value into a set output
format. It uses the standard DateTime format strings. For example, if you have a Date
function and you want to render it using the default shortDatePattern type, you would
simply say
var a = myDate.format("d");
where d is the standard format specified for shortDatePattern.
Formatting a Date Using Locale
If you want to format a date according to the current locale on the machine, you must
first set the EnableScriptGlobalization property on the ScriptManager control to true. You
will also need to ensure that the culture attribute of the web site is set to auto using
Web.config.