Remove sub-document from Mongo with mongoose

Question

I am trying to remove an item from a collection that is stored in a mongoose document. My document looks like this:

{
  \"__v\": 3,
  \"_id\": \"5221040475f         


        

Answer 1

You can simply use $pull to remove a sub-document.

    Collection.update({
    _id: parentDocumentId
  }, {
    $pull: {
      subDocument: {
        _id: SubDocumentId
      }
    }
  });

This will find your parent document against given ID and then will remove the element from subDocument which matched the given criteria.