Repeated local notifications - angularjs

Question

I am developing an application with local notifications with values coming from the database. However, it is repeating the notification with the same value countless times until changing to another.
Example:
1st - "The invoice of house #1 will expire"
2nd - "The invoice of house #1 will expire"
3rd - "The invoice of house #2 will expire"
Any idea what that might be and how to fix it?
calculateDif(idHouse, dateBill) {
let billDate= moment(dateBill);
var MyDate = new Date();
var MyDateString;
MyDateString = MyDate.getFullYear() + '-' + ('0' + (MyDate.getMonth()+1)).slice(-2)
+ '-' + ('0' + MyDate.getDate()).slice(-2);
let warningDate= billDate.diff(MyDateString, 'days');
if (warningDate <= 5) {
this.localNotifications.schedule({
id: 1,
text: 'The invoice of house ' idHouse + ' will expire',
sound: null,
data: { secret: 1 }
});
}
}

Answer 1

I think the problem is in the function that execute calculateDif();
You can also create an array of your articles that you have already notified, for example notifiedHouses = []
and check if the id is already notified using .some
calculateDif(idHouse, dateBill) {
let billDate= moment(dateBill);
var MyDate = new Date();
var MyDateString;
MyDateString = MyDate.getFullYear() + '-' + ('0' + (MyDate.getMonth()+1)).slice(-2)
+ '-' + ('0' + MyDate.getDate()).slice(-2);
let warningDate= billDate.diff(MyDateString, 'days');
if (warningDate <= 5 && !this.notifiedHouses.some( item => item.idHouse === idHouse )) {
this.localNotifications.schedule({
id: 1,
text: 'The invoice of house ' idHouse + ' will expire',
sound: null,
data: { secret: 1 }
});
const house = {idHouse: idHouse}
this.notifiedHouses.push(house);
}
}