How to delete the array elements at index in firestore in javascript

Question

    var arr = [ \"GKRLrcpSL2BmKx3BfvWj\",\"fMwH404fweoFJJqyE5Nf\" , \"DTurwbw64CWw4WosUQtC\" ] //
arr.forEach((element) => {
    console.log(element);
    db.collecti         


        

Answer 1

If that works for you, use a map instead of an array, putting dummy values if necessary. Then you can remove the field directly.

fill: {
  a: xxx,
  b: xxx,
  check: xxx
}

db.collection("Check").doc(element).update({
  fill.check: firebase.firestore.FieldValue.delete()
})