Actualizarea bazei de date în timp real firebase

Exemple de cod

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0

adaugă la baza de date firebase

db.collection("cities").add({
    name: "Tokyo",
    country: "Japan"
})
.then(function(docRef) {
    console.log("Document written with ID: ", docRef.id);
})
.catch(function(error) {
    console.error("Error adding document: ", error);
});
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actualizarea bazei de date în timp real firebase

<a href="#" >Add Data</a>
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javascript scrie la firebase

function writeUserData(userId, name, email, imageUrl) {
  firebase.database().ref('users/' + userId).set({
    username: name,
    email: email,
    profile_picture : imageUrl
  });
}
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date de actualizare firebase

await firebase.database().ref().update(updates);

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