Pro PHP and jQuery by Jason Lengstorf.pdf - Computer Science ...

$.validDate = function(date, options)
{
// code here
};
})(jQuery);
CHAPTER 10■ EXTENDING JQUERY
The options object will only have one property: the pattern to be used for validation. Because you
want the options object to be optional, you define a default value for the pattern in the function by
inserting the following bold code:
(function($){
// Extends the jQuery object to validate date strings
$.validDate = function(date, options)
{
// Sets up default values for the method
var defaults = {
"pattern" : /^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}$/
};
};
})(jQuery);
Extending Default Options with User-Supplied Options
You can extend the default object using the $.extend() function, which will create a new object by
combining the default options with the user-supplied options. If there are three options available and
the user passes an object with only two of them defined, using $.extend() will only replace the two
properties redefined by the user.
Insert the code shown in bold to extend the default object:
(function($){
// Extends the jQuery object to validate date strings
$.validDate = function(date, options)
{
// Sets up default values for the method
var defaults = {
"pattern" : /^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}$/
},
};
})(jQuery);
// Extends the defaults with user-supplied options
opts = $.extend(defaults, options);
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