Angular $watch tricks

gistfile1.md

#Angular.js $watch tricks

###Angular enables you to $watch anything:

• $scope.foo

$scope.$watch('foo', cb);

• var foo

$scope.getFoo = function() { return foo; }
$scope.$watch('getFoo', cb);

• multiple values

$scope.foo, $scope.bar
$scope.$watch('[foo, bar]', cb);
// or
$scope.$watch('{some: foo, thing: bar}');