Remove item from firebase array with value using jquery

Question

I want to remove a value from firebase database with value using jquery.

I want to delete 235 value from the firebase.

I tried..

var dbRef = new Firebase("https://afgani-cinemas.firebaseio.com/");
var showId = getUrlParameter('showId');
var bookings = dbRef.child('bookings/'+showId);

 function removeFromFB(seatId){
    dbRef.orderByValue().equalTo().on('child_added', function(snapshot){
      snapshot.dbRef().remove();
    });
}

removeFromFB(235);

Any suggestions in my code. Its not working!!!

getting warning like this

firebase.js:40 FIREBASE WARNING: Using an unspecified index. Consider adding ".indexOn": ".value" at / to your security rules for better performance

My first recommendation (without reading any further) is to upgrade to a more recent version of the Firebase SDK. The new Firebase syntax has been superseded over 1.5 years ago. For help in upgrading the code, see firebase.google.com/support/guides/… — Frank van Puffelen
– Frank van Puffelen, Commented Sep 14, 2017 at 14:10
That warning should not prevent your code from working. It just warns you that the code is inefficient. See some of the previous developers who had this warning: google.com/… — Frank van Puffelen
– Frank van Puffelen, Commented Sep 14, 2017 at 14:11
That could be, but it's unrelated to the warning message. Is you child_added callback being invoked? — Frank van Puffelen
– Frank van Puffelen, Commented Sep 14, 2017 at 14:28
No. There is no change happening in firebase after this execution. — Jishad
– Jishad, Commented Sep 14, 2017 at 14:31

Muneef M · Accepted Answer · 2017-09-14 17:39:22Z

3

Try using this code snippet

var bookings = firebase.child('root/321');
 function removeFromFB(valu){
    bookings.on('child_added', function(data) {
        if(data.val()==valu){
            bookings.child(data.key()).remove();
        }

});
}
removeFromFB(deleteValue);

in your case "deleteValue" will be 235

answered Sep 14, 2017 at 17:39

Muneef M

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