Map data on $bind

[Masterxhen]

Is it possible to map data during binding like in sqls that gets a specific collumn/property of a firestore/realtime database document? Like the array.prototype.map on querying

this.$bind('documents', db.collection('documents').map(data => { return {name: data.name, age: data.age})

[fvanwijk]

Use a computed property to get derived data that updates automatically.

computed: {
  mappedDocuments() {
    // Only get name and age keys
    return this.documents.map(({ name, age }) => ({ name, age }));
  }
}

In this particular case of a field mask you could use a DataConverter, but I think it is only supported when you do a one-time query.

[posva]

Use a computed property for the moment. See #608