How do I sort user to orderBy user from the last contact added to the first. Descending order
voila mon code
export class Page1 {
persones:FirebaseListObservable;
constructor(public navCtrl: NavController,public alertCtrl : AlertController , public angFire:AngularFire) {
this.persones=angFire.database.list(’/Persones’);
}
les variable
register(nom , profession ,telefone ,ville , description)
help me plz