How to group by field present in nested array of objects

Question

I want to group details object that have the same value. Details object has a place property. I am trying to group the objects by matching place property.

This is how my Data looks like:

Input

data=[{
    "name":"abc",
    "age":12,
    "details":[{
        "place":"abc",
        "hobbies":"playing"
    }],
    "school":"abcd"
},
{
    "name":"bcd",
    "age":11,
    "details":[{
        "place":"zyx",
        "hobbies":"watching"
    }],
    "school":"bcda"
},
{
    "name":"cde",
    "age":13,
    "details":[{
        "place":"abc",
        "hobbies":"playing"
    }],
    "school":"cdba"
},
{
    "name":abcd",
    "age":15,
    "details":[{
        "place":"zyx",
        "hobbies":"playing"
    }],
    "school":"qwer"
}
]

I have tried this using .reduce but unable to group nested array of objects data.

Expected Output

{
    'abc': [
        {
            "name":"abc",
            "age":12,
            "details":[{
                "place":"abc",
                "hobbies":"playing"
            }],
            "school":"abcd"
        },
        {
            "name":"cde",
            "age":13,
            "details":[{
                "place":"abc",
                "hobbies":"playing"
            }],
            "school":"cdba"
        }
    ],
    'zyx': [
        {
            "name":abcd",
            "age":15,
            "details":[{
                "place":"zyx",
                "hobbies":"playing"
            }],
            "school":"qwer"
        },
        {
            "name":"bcd",
            "age":11,
            "details":[{
                "place":"zyx",
                "hobbies":"watching"
            }],
            "school":"bcda"
        },
    ]
  }

Kindly help me in solving this problem.

Can we assume `details` is always an array of exactly one element? — 3limin4t0r, Jun 02 '22 at 15:58
This is just a group-by on `details[0].place` (LOL @MikeM tooo true) — pilchard, Jun 02 '22 at 16:02
Does this answer your question? [How can I group an array of objects by key?](https://stackoverflow.com/questions/40774697/how-can-i-group-an-array-of-objects-by-key) — pilchard, Jun 02 '22 at 16:03
we should be a little more comfortable with new member. don't be too strict — Xupitan, Jun 02 '22 at 16:05
@pilchard Thankyou so much the above suggestions helps me to solve the problem. — anu, Jun 03 '22 at 06:31

How to group by field present in nested array of objects

0 Answers0