How to update array value with same key in session storage - angularjs

Question

I have two tabs in my admin interface. I am storing the response in my session storage. When I do the updation of any records in the tab or if I insert new record also, the same thing should be reflected in the storage also. But currently, the changes are not getting reflected in the storage. I tried my best to sort out, but I could not able to succeed. Any help/advice greatly appreciated.
Angularjs:
$scope.Pool = [];
if (!localStorageService.get('Pool')) {
Role.getPool().success(function(data) {
if (data.responseCode === 0) {
_.forEach(data.response.demoPool, function(value, key) {
dataObj = {};
dataObj.id = value.poolId;
dataObj.value = value.poolName;
$scope.Pool.push(dataObj);
});
localStorageService.set('Pool', $scope.Pool);
} else {
$scope.alerts.alert = true;
$scope.alerts.type = 'danger';
$scope.alerts.msg = data.errorMsg;
}
})

Answer 1

First time it will do because !localStorageService.get('Pool') becomes true. But next time it will return false because storage has value already, it will not get inside the if condition. so to resolve this remove the session storage 'Pool' to allow to execute your Role.getPool().success(function(data) {

Answer 2

if (!sessionStorage.length) {
// Ask other tabs for session storage
localStorage.setItem('getSessionStorage', Date.now());
};
window.addEventListener('storage', function (event) {
switch (event.key) {
case 'getSessionStorage':
// Some tab asked for the sessionStorage -> send it
localStorage.setItem('sessionStorage', JSON.stringify(sessionStorage));
localStorage.removeItem('sessionStorage');
break;
case 'sessionStorage':
// sessionStorage is empty -> fill it
var data = JSON.parse(event.newValue);
for (key in data) {
sessionStorage.setItem(key, data[key]);
}
break;
}
});