How to create dirty flag functionality

Question

I want to create dirty flag functionality using knockout. I want to enable the save button only if something has changed. My view and my view model is exactly same as exampl

Answer 1

The dirty flag for knockout is already implement in the small library koLite - https://github.com/CodeSeven/kolite .

Or here is an example of creating it: http://www.knockmeout.net/2011/05/creating-smart-dirty-flag-in-knockoutjs.html