How To Get The Position Of An Item In The Realtime Database
I want to get the position of an item in the database, along with the data. .ref('users') .orderByChild('email') .equalTo(myEmail) .once('value', snapshot => { console.log('
Solution 1:
The Firebase Realtime Database does not track the position of nodes in their parents, nor does it return such a position in query results. This means the only way to determine the position of a child within a set of child nodes, is to retrieve all child nodes before the one you're looking for.
.ref("users")
.orderByChild("email")
.endAt(myEmail)
.once("value", snapshot => {
var index = 0;
snapshot.forEach(function(childNode) {
if (childNode.child("email").val() === myEmail) {
console.log("Database Position", index);
}
else {
index = index + 1;
}
});
}
Since you commented that you're trying to create a leaderboard, see:
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