Javascript object encapsulation that tracks changes
- by Raynos
Is it possible to create an object container where changes can be tracked
Said object is a complex nested object of data. (compliant with JSON).
The wrapper allows you to get the object, and save changes, without specifically stating what the changes are
Does there exist a design pattern for this kind of encapsulation
Deep cloning is not an option since I'm trying to write a wrapper like this to avoid doing just that.
The solution of serialization should only be considered if there are no other solutions.
An example of use would be
var foo = state.get();
// change state
state.update(); // or state.save();
client.tell(state.recentChange());
A jsfiddle snippet might help : http://jsfiddle.net/Raynos/kzKEp/
It seems like implementing an internal hash to keep track of changes is the best option.
[Edit]
To clarify this is actaully done on node.js on the server. The only thing that changes is that the solution can be specific to the V8 implementation.
