Remove field found in any mongodb array

Question

I have a document looking like this:

{
field: \'value\',
field2: \'value\',
scan: [
    [
        {
            dontDeleteMe: \'keepMe\',
            arrayTo         


        

Answer 1

I have tried with your given sample document and its working , you have to use $[] to achieve this :

db.collectionName.(update({},{$unset: {
   "scan.$[].$[].arrayToDelete": 1
}})