firebase 3a firebase app named 27 5bdefault 5d 27 already exists

1if (!firebase.apps.length) {
2   firebase.initializeApp({});
3}else {
4   firebase.app(); // if already initialized, use that one
5}
6

1if (!firebase.apps.length) {
2    firebase.initializeApp({});
3}

1// Config file
2import * as firebase from "firebase";
3
4const config = {...};
5
6export default !firebase.apps.length ? firebase.initializeApp(config) : firebase.app();
7
8// Other file
9import firebase from '../firebase';
10...
11console.log(firebase.name);
12console.log(firebase.database());

1if (!firebase.apps.length) {
2    firebase.initializeApp(firebaseConfig);
3}

1// Config file
2import * as firebase from "firebase";
3
4const config = {...};
5
6export default !firebase.apps.length ? firebase.initializeApp(config) : firebase.app();
7
8// Other file
9import firebase from '../firebase';
10...
11console.log(firebase.name);