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Firebase Realtime Javascript SDK : orderByChild and equalTo not working with string like “+123”

Using the Javascript SDK and this sample firebase database, with an index on "mobile" :

test
 A
  mobile : "+1234567"
 B
  mobile : "+2345678"

Now I want to query all nodes with mobile = "+1234567"

firebase.database().ref("test").orderByChild("mobile").equalTo("+1234567").once('value', function(snapshot) {
     console.log(snapshot.val());
});

output : null

I asked this exact same question for REST API (resolved) : Firebase Realtime equalTo not working with String like "+123"

But can not get it working with the javascript SDK.

Thanks !

question from:https://stackoverflow.com/questions/65926152/firebase-realtime-javascript-sdk-orderbychild-and-equalto-not-working-with-str

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