Answers for "Firebase: Firebase App named '[DEFAULT]' already exists with different options or config (app/duplicate-app).] -v9"

Firebase: Firebase App named '[DEFAULT]' already exists

if (!firebase.apps.length) {
   firebase.initializeApp({});
}else {
   firebase.app(); // if already initialized, use that one
}

Posted by: Guest on December-16-2020

Firebase: Firebase App named '[DEFAULT]' already exists (app/duplicate-app).

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

Posted by: Guest on March-14-2021

Code answers related to "Firebase: Firebase App named '[DEFAULT]' already exists with different options or config (app/duplicate-app).] -v9"