how can create a deeply nested object in javascript?

Question

I want to create nested object in deeply way. What I'm trying to create is a grouped summary object from the array of nested JSON objects with the following structure:

[
    {
        "id": 1,
        "code": "193",
        "type": "Dental Provider",
        "classification": "Dentis",
        "specialization": "General Practice",
        "definition": "definition1",
        "notes": "[7/1/2003: new]",
        "individual": "individual"},
    {
        "id": 11,
        "code": "207",
        "type": "Allopathic & Osteopathic Physicians",
        "classification": "Anesthesiology",
        "specialization": "Pediatric Anesthesiology",
        "definition": "defin_2",
        "individual": "individual"}]

Expected:

result = {
    "invidual": {
        "Dental Provider": {
            "Dentis":{
                "General Practice":{
                    id: 1,
                    code: "193",
                    definition: "definition1",
                    individual: "individual",
                    type: "Dental Provider",
                    classification: "Dentist",
                    specialization: "General Practice"},
"invidual": {
        "Allopathic & Osteopathic Physicians": {
            "Anesthesiology":{
                "Pediatric Anesthesiology":{
                    id: 11,
                    code: "207",
                    definition: "defin_2",
                    individual: "individual",
                    type: "Allopathic & Osteopathic Physicians",
                    classification: "Anesthesiology",
                    specialization: "Pediatric Anesthesiology"}
}

Hi! Please take the tour (you get a badge!) and read through the help center, in particular How do I ask a good question? Your best bet here is to do your research, search for related topics on SO (there are hundreds of questions like this), and give it a go. If you get stuck and can't get unstuck after doing more research and searching, post a minimal reproducible example of your attempt and say specifically where you're stuck. People will be glad to help. — T.J. Crowder
– T.J. Crowder, Commented Jan 8, 2021 at 13:41

farzanmanafi · Accepted Answer · 2021-01-08 15:11:19Z

2

let result = taxonomies.reduce((c, v) => {
  c[v.individual] = c[v.individual] || {};                         
  c[v.individual][v.type] = c[v.individual][v.type] || {};   
  c[v.individual][v.type][v.classification] = c[v.individual][v.type][v.classification] || {};    
  c[v.individual][v.type][v.classification][v.specialization] = v
console.log(result)

answered Jan 8, 2021 at 15:11

farzanmanafi

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