Data from AngularJS local storage service not rendering unless page refreshed - html

Question

I am building a small AngularJS project and I have encountered a problem that I want to ask you guys about.
I am using angular-local-storage module to store some data coming from my API into the browser's local storage.
In one of my controllers I assign this data to a variable in the $scope object and try to render it in the view as follows:
controller:
angular.module('Dashboard')
.controller('DashboardController',
['$scope', '$rootScope', 'localStorageService',
function ($scope, $rootScope, localStorageService) {
$scope.userData = localStorageService.get('userData');
}]);
And the view:
<div class="row">
<h4>Welcome to your dashboard <strong>{{userData.personalUserInfo.name}}</strong>!</h4>
When I log into the app (which is when the data is fetched from API and stored in local store by key 'userData'), the view is incomplete, I get only "Welcome to your dashboard !" without the name there. When I go to the dev console and look at the localStorage of my browser, the entry "userData" is there, it is just not rendered.
Then when I hit F5 and refresh the page, the name appears.
Do you have any ideas why that is and what can be done to fix that?
Cheers!

Answer 1

You have to use $scope.$watch for this, like following:
$scope.$watch(function() {
return localStorageService.get('userData');
}, function(newVal, oldVal) {
if (newVal !== oldVal)
$scope.userData = newVal;
})
$scope.$watch, will execute second function each time return value of first function is changed.