如何在 mongoose 的数组中返回匹配的 object

Question

{
  "_id": 36546b46bbh343..,
  "name": "Mike",
  "Friends: [
    {"name":"lora","age":23},
    {"name":"test","age":26}
  ]
}

I know that if we do

dbname.find({
  Friends:{
    $elemMatch:{
      "name": "test", 
      "age": 26
    }
  }
})

It will return the whole document with all the objects. But what I have been searching for is there any method so that I can get only the object that matches it.

Answer 1

Try this

 db.collection.find({
      Friends: {
        $elemMatch: {
          "name": "test",
          "age": 26
        }
      }
    },
    {
      "Friends.$": 1
    })

Demo