How to update only a single value in an array

Question

 const docRef = firestore.collection("SequenceId").doc(doc.id);

 docRef.update({

                sequencenumber: {
                    [x]: false 
                  }

             })

Currently my database is

After the above code is executed my database

But i want only the value of 2: to be updated to false, while maintaining 3: and 4: . Here 3: and 4: gets deleted.

score 1 · Accepted Answer · answered Sep 07 '18 at 06:29

1

Firestore doesn't currently offer the ability to update a single item in an indexed array. Your alternative is to read the entire array from the document, modify it in memory, then write the entire array back to the document.

The only array update operations available are adding a new array ("arrayUnion") and removing an item from an array ("arrayRemove"). You can read the documentation for those operations.

answered Sep 07 '18 at 06:29

Doug Stevenson

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if i have like 50 elements in an array , is there an easy way to do it? – Paul Baiju Sep 07 '18 at 06:32
My answer applies to arrays of all sizes. – Doug Stevenson Sep 07 '18 at 06:49

How to update only a single value in an array

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