I've found an article in russian "A modular approach to
JavaScript." (http://habrahabr.ru/blogs/javascript/117069/)
where the autor explains one interesting idea how temporary to open/
close acces to private variable.
This trick is based on that if private variable is not simple tipy -
it may be accessible through a reference outside the private scope
var MODULE = (function (my) {
var
_private = my._private = my._private || {},
_seal = my._seal = my._seal || function () {
delete my._private;
delete my._seal;
delete my._unseal;
},
_unseal = my._unseal = my._unseal || function () {
my._private = _private;
my._seal = _seal;
my._unseal = _unseal;
};
// permanent access to _private, _seal, and _unseal
return my;
}(MODULE || {}));
It's useful when MODULE is broken down into files.
To give an acces to part of MODULE in anothe file:
MODULE._unseal();
do somthing with MODULE._private (e.g. with _private)....
MODULE._seal();
It's very interesting!
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