Function for safely applying a AngularJS $scope.$apply regardless of $digest phase

AngularTheBasics-SafeApply

function runScope(angularScope,callback){

  var result = void 0;
  var phase = angularScope.$root.$$phase;

  if(phase == '$apply' || phase == '$digest'){
    result = callback === undefined ? void 0 : callback(angularScope);
  }else{
    angularScope.$apply(function(){
      result = callback === undefined ? void 0 : callback(angularScope);
    });
  }

  return result;
}