MongoDB,從數組中刪除對象

{
   _id: 5150a1199fac0e6910000002,
   name: 'some name,
   items: [{
      id: 23,
      name: 'item name 23'
   },{
      id: 24,
      name: 'item name 24'
   }]
}

刪除代碼
db.mycollection.update(
    {'_id': ObjectId("5150a1199fac0e6910000002")}, 
    { $pull: { "items" : { id: 23 } } }
);