Question

I would like to watch the ViewModel for any changes to any properties. Is this possible with knockout.js?

Answer 1

How about this code:

function subscribeToModelChange (viewModel)
{
    for (var prop in viewModel)
    {
        if (ko.isObservable (viewModel[prop])
            viewModel[prop].subscribe (function (newValue) { onModelChanged (viewModel[prop], newValue); });
    }
}

function onModelChanged (observable, newValue)
{
    alert ("Hooray!");
}

You’ll be notified about changes to any knockout observable in your view-model.