How can I group by age and display name from the following data need mongodb quer.
This is my sample data:
[
{
"name": "a",
"age": 20.0,
"id": "1"
},
{
"name": "b",
"age": 21.0,
"id": "2"
},
{
"name": "c",
"age": 23.0,
"id": "3"
},
{
"name": "d",
"age": 20.0,
"id": "4"
},
{
"name": "e",
"age": 21.0,
"id": "5"
},
{
"name": "f",
"age": 23.0,
"id": "6"
},
{
"name": "g",
"age": 20.0,
"id": "7"
},
{
"name": "h",
"age": 21.0,
"id": "8"
},
{
"name": "j",
"age": 23.0,
"id": "9"
}
]