Cannot read JSON value from Firebase

Question

I'm on a react-native project where I'm querying firebase to get some data from Firebase realtime database. However I receive my required output by below code.

getData = (email) => {
let usersRef = firebase.database().ref('users');
usersRef.orderByChild('emailAddress').equalTo(email).on("value", (snapshot) => {
  let data  = snapshot.val();
  console.log(data);
  console.log(data.emailAddress);
});

}

But unexpectedly I get the output for second log as undefined .

Problem

I cannot read the value of emailAddress . I don't understand why. Below is my database structure.

Answer 1

I was missing foreEach function since it returns proto as well.

getData = (email) => {
  let usersRef = firebase.database().ref('users');
  usersRef.orderByChild('emailAddress').equalTo(email).on("value", (snapshot) => {
    snapshot.forEach((snap) => {
      console.log(snap.val().emailAddress);
    })
  });
}