javascript - How to get data from firestore DB in outside of onSnapshot

Question

Result undefined when I try to get value from firestore and put to a variable, but works in console.

My code:

this.db.collection('Users').doc(uid).get()
  .then((docSnapshot) => {
    if (docSnapshot.exists) {
      this.db.collection('Users').doc(uid)
        .onSnapshot((doc) => {
          console.log(doc.data()); //working
          perfil = doc.data(); //not working
        });
    }
  });

console.log(perfil); //not working. Display undefined

Answer 1

Waitting for answers