Update field in exact element array in MongoDB

Question

I have a document structured like this:

{
    _id:\"43434\",
    heroes : [
        { nickname : \"test\",  items : [\"\", \"\", \"\"] },
        { nickname          


        

Answer 1

db.collection.update(
{
heroes:{$elemMatch:{ "nickname" : "test"}}},
 {
     $push: {
        'heroes.$.items': {
           $each: ["new_value" ],
           $position: 1
        }
     }
   }

)