How to parse json file?

Question

JavaScript

Tell me, I'm studying react and it came to splitting and getting a json file. There is such a structure

[{
    "id": 0,
    "name": "рпрп",
    "age": 37,
    "phone": "33",
}, {
     "id": 1,
    "name": "рпрп",
    "age": 46,
    "phone": "333",
}]

It turned out to break it, but how to get a similar result from the structure below (or how best to process it, I don’t quite understand)

[{
        "main1": {
            "submain11": "text",
            "submain12": "text",
            "img": "/jpg"
        },
        "main2": {
            submain21": "text",
            "submain22": "text"
        },
        "main3": {
            "submain31": "text",
            "submain32": "text"
        },
        "main4": {
            "submain41": "text",
            "submain42": text",
            "submain43": "text",
            "submain44": "text"
        }
    },
{
        "main1": {
            "submain11": "text",
            "submain12": "text",
            "img": "/jpg"
        },
        "main2": {
            submain21": "text",
            "submain22": "text"
        },
        "main3": {
            "submain31": "text",
            "submain32": "text"
        },
        "main4": {
            "submain41": "text",
            "submain42": text",
            "submain43": "text",
            "submain44": "text"
        }
    }]

Answer 1

https://stackoverflow.com/questions/37649695/how-c...
https://www.npmjs.com/package/react-json-parser