angular的$scope的使用

// 监听日期变化
			$scope.$watch(‘vaFilter.startEffectiveDate‘, function(newDate, oldDate, scope){
				if (!angular.isUndefined(newDate)) {
					$scope.fromDate = newDate;
				}
			});

angular.module(‘myModule‘, []).controller(‘MyCtrl‘, function() {
    $scope.$watch(‘test‘, function(newVal, oldVal){
           //TODO
});
});    

var test = "test"; test 为angular之外的js全局变量