如何在MongoDB的数组中从嵌入式文档打印值？

Question

Here is the document from which I want to print name value (Despacito) only.

{
    "movie" : [
            {
                    "song" : {
                            "name" : "Despacito"
                    }
            }
    ]
}

Answer 1

movie is an array, so you can access the index by movie[0]. Then song is an object. You can just do

result.movie[0].song.name

DEMO

 var result = { "movie" : [ { "song" : { "name" : "Despacito" } } ] }; console.log(result.movie[0].song.name);