I'm learning firebase. in many code examples I see something like this

const auth = getAuth();

await signInWithPopup(auth, provider);

while in firebase web codelab they call getAuth directly

await signInWithPopup(getAuth(), provider);

same thing with getFirestore.
so which one is the correct way of doing it and if they are both same what is better practice?

edit: when I need to use auth object more than once will I get any performance benefits by calling getAuth once and asigning it to a variable?

CodePudding user response：

These two code examples are functionally the same. The first example is simply more verbose.

CodePudding user response：

If you don't need to reuse the auth variable, then you can simply call it directly.

It doesn't have any significant difference in this case.