check if item is already registered in angular angularfire site:stackoverflow.com
ref.child("users").orderByChild("ID").equalTo("U1EL5623").once("value",snapshot => {
if (snapshot.exists()){
const userData = snapshot.val();
console.log("exists!", userData);
}
});check if item is already registered in angular angularfire site:stackoverflow.com
//every user must have an email
firebase.database().ref(`users/${userId}/email`).once("value", snapshot => {
if (snapshot.exists()){
console.log("exists!");
const email = snapshot.val();
}
});Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
