How do I set the displayName of Firebase user?

Question

According to the JS Auth documentation on the Firebase website, it only shows how to get the displayName and how to update displayName. So I tried to update it. But

Answer 1

I could´t use ({displayName: name}) directly (sintaxe error in editor). Then, I found another way:

UserUpdateInfo updateInfo = UserUpdateInfo();
updateInfo.displayName = name;
result.user.updateProfile(updateInfo);

This is in Dart (I am using Firebase with Flutter).

Answer 2

You have to chain the request:

firebase.auth().createUserWithEmailAndPassword(email, password)
.then(function(result) {
  return result.user.updateProfile({
    displayName: document.getElementById("name").value
  })
}).catch(function(error) {
  console.log(error);
});`

Answer 3

firebase
      .auth()
      .createUserWithEmailAndPassword(newUser.email, newUser.password)
      .then((res) => {
        const user = firebase.auth().currentUser;
        return user.updateProfile({
          displayName: newUser.name
        })
      })

This worked for me.