Add $watchGroup

[gabrielmaldi]

A feature request very similar to #4 but for $watchGroup.

Thanks!

[sashberd]

Hey
I was need also such behavior, and as I see its development is not in progress. Thus, here my solution for this issue:

ctrlImpl.prototype.$watchGroup = function () {
         var args = arguments, watchExpr = args[0];     
         watchExpr.forEach(function (item,index,array) {
             var getExpr = $parse(item);
             array[index] = function () { return getExpr(instance); }
         });
         return $scope.$watchGroup.apply($scope, args);          
     }

Just add it inside angular-360-no-scope.js file after $watch prototype overriding.
Hope this helps

[gabrielmaldi]

Thank you, @sashberd!

[christopherthielen]

Put this in a PR and I'll merge it!

[sashberd]

I have no idea how to put this to PR so I leave this to you