MongoDB delete element from array

Question

I want to delete element in array

Here I find such element of array

db.getCollection('files').aggregate([{'$unwind': "$Package.PackageBody.InvestmentVehicle"},{'$match': { "Package.PackageBody.InvestmentVehicle.Name": "file.txt"}}])

It's better in one command.

Possible duplicate of [Delete an element from an array of an array in MongoDb](https://stackoverflow.com/questions/34507696/delete-an-element-from-an-array-of-an-array-in-mongodb) — user1211, Jul 17 '17 at 18:10

score 0 · Answer 1 · answered Jul 19 '17 at 09:48

I found the solution, it delete element of array, but unfortunately leave NULL ,instead of total delete.

db.getCollection('typeE').update(
    { "Package.PackageBody.InvestmentVehicle.Operation.LegalName": "FileName" },
    {
        "$unset": {
            "Package.PackageBody.InvestmentVehicle.$": ""
        }
    },false,true
)

MongoDB delete element from array

1 Answers1