angularjs - Share $Scope data between States -

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i trying access parent state child. tried doesn't work.

angular.module('myapp').controller('comparectrl', ['$scope',     function($scope) {  $scope.test=$scope.$parent.services;

app.coffee

angular   .module('myapp', ['nganimate', 'ngcookies', 'ngresource'                   , 'ui.router', 'ngsanitize', 'ngtouch'])   .config ($stateprovider) ->     $stateprovider.state('home',       url: "/"       templateurl: "home.html"     ).state('services',       url: "/services"       templateurl: "services/list.html"     ).state('services.detail',       url: "/detail/"       templateurl: "detail.html"     ).state('services.compare',       url: "/compare/"       templateurl: "compare.html"     )

ui-router supports data (model) sharing among state families. detailed explanation found here

how share $scope data between states in angularjs ui-router?

where can see, need introduce model, cluster, reference object. 

// controller of parent state 'services' .controller('servicesctrl', ['$scope',     function($scope) {         $scope.model = { prop1 : value1, ...}; }])

because each child state prototypically inherit reference $scope.model... can access in child state controller 

.controller('servicechildctrl', ['$scope',     function($scope) {         $scope.model.prop1 = differentvalue; }])

check in action in this working plunker


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