How to remove Phone Number from user account in firebase?

Question

I'm guessing you have to do something with re authing to remove the phone number because at the moment I am trying to do this:

const user = firebase.auth().currentUser;

user.updateProfile({phoneNumber: null}).then(() => { alert('success') }).catch(err => {alert(err)})

this is not working, but I am getting the success block

Answer 1

To remove a phone number account from a user, simply unlink it:

firebase.auth().currentUser.unlink(firebase.auth.PhoneAuthProvider.PROVIDER_ID);