I'd like to list of the collection of Firestore database inside Ionic4 app so I use the doc in the section listCollection so I applied the example code in my code :
this.afs.firestore.listCollections().then(collections => {
for (let collection of collections) {
console.log(`Found collection with id: ${collection.id}`);
}
});
here is my constructor :
constructor(private router: Router,
private afs: AngularFirestore,
private fireauth: AngularFireAuth) { }
And I get this error : error TS2339: Property 'listCollections' does not exist on type 'Firestore'.
I can not use the property listCollections whereas it is in the online doc...
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