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VistasGetting the Data in snapshot.val() but not able to treat it
I was making an app and had to fetch data from Realtime Database. I am getting the data in snapshot.val() like this
►{xz0ezxzrpkb:{…}}
▼xz0ezxzrpkb:{blood_group:"B+",cause:"Random Cause",created_on:"08-02-2022",email:"example@gmail.com",location:"Random Location",message:"Random Message",name:"Any_Name",phone_number:"+91 *********"}
And Now I want to access this data. When I am trying snapshot.val()[0].email and
snapshot.val().[0].email I am Getting
undefined (2)
So, I am working in React Native and this is the code
db.ref('/requests/').on('value', (snapshot) => {
console.log(snapshot.val())
console.log(snapshot.val()[0].email)
console.log(snapshot.val().[0].email)
});
The nodes of database are as follows:
Please help me out.
·
Juan Pablo Isaza
2 Respuestas
Responde la pregunta0
The snapshot value is not an object. Try refactoring the code using Object.keys() as shown below:
db.ref('/requests/').on('value', (snapshot) => {
Object.keys(snapshot.val()).forEach((key) => {
const request = snapshot.val()[key];
console.log(key, request.email)
})
});
·
Juan Pablo Isaza
Denunciar
0
While the approach in Dharmaraj's answer works, I recommend using Firebase's built-in forEach operation, since that ensures that you process the results in the same order the database returns them:
db.ref('/requests/').on('value', (snapshot) => {
snapshot.forEach((childSnapshot) => {
console.log(childSnapshot.key) // "xz0ezxzrpkb"
console.log(childSnapshot.val()) // {blood_group:"B+",cause:"Random Cause", ...
console.log(childSnapshot.val().email) // "example@gmail.com"
console.log(childSnapshot.child('email').val()) // "example@gmail.com"
})
})
·
Juan Pablo Isaza
Denunciar
Responde la pregunta