javascript - change in a variable outside angular scope -


beginner in angular + looked @ of complex $watch, $digest , $apply threads around still can't make work.

var masterarray = [obj1, obj2, ... ];

this variable not inside angular scope , on plain js , gets updated plain js again outside angular's scope periodically user's interactions.

how can capture change in masterarray, , update associated $scope well.

  app.('mycontroller', ['$scope', function($scope){         $scope.items = masterarray;     }]);

is there way update $scope.items masterarray changes? thing works when reload page masterarray pushed localstorage everytime it's updated.

similar concern - data variable (outside angular) arrives little late callback function server in plain js or jquery angular scopes , variables defined during document load.

i couldn't find way update angular scopes associated variables during page load null or empty updated data.

some hack should work:

  app.('mycontroller', function($scope){       $scope.items = masterarray;       $scope.$watch(function() {           return masterarray;       }, function(masterarray) {           $scope.items = masterarray;       });   });

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