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Rob Kinyon - Try-0.01

  getTransport: function() {
      return Try.these(
          function() {return new ActiveXObject('Msxml2.XMLHTTP')},
          function() {return new ActiveXObject('Microsoft.XMLHTTP')},
          function() {return new XMLHttpRequest()}
      ) || false;
  }

/*

=head1 NAME

Class

=head1 DESCRIPTION

This provides a useful way to create classes. See below for more details.

=head1 DEPENDENCIES

This requires JSAN to be installed.

=cut

*/

/*

=head1 STATIC CLASSES

These are classes that are not instantiable, but instead provide a useful set of operations. (In Javascript terms, they do not provide a prototype member, so you will never call new upon them.)

=cut

*/

/*

=head2 Try

Try is provided as a way of testing a series of items and returning the first one that doesn't throw an error.

Try provides the C<these()> function, used as so in the Ajax class.

  getTransport: function() {
      return Try.these(
          function() {return new ActiveXObject('Msxml2.XMLHTTP')},
          function() {return new ActiveXObject('Microsoft.XMLHTTP')},
          function() {return new XMLHttpRequest()}
      ) || false;
  }

=cut

*/

var Try = {
    these: function() {
        var returnValue;

        for (var i = 0; i < arguments.length; i++) {
            var lambda = arguments[i];
            try {
                returnValue = lambda();
                break;
            } catch (e) {}
        }

        return returnValue;
    }
};

Try.VERSION = '0.01';

/*

=head1 SUPPORT

Currently, there is no mailing list or IRC channel. Please send bug reports and patches to the author.

=head1 AUTHOR

Rob Kinyon (rob.kinyon@iinteractive.com)

Originally written by Sam Stephenson (sam@conio.net)

My time is generously donated by Infinity Interactive, Inc. L<http://www.iinteractive.com>

=cut

*/