从树 object 构建平面对象数组

Question

I'm struggling with converting nested object to needed format. I want an array containing objects from nested object to suit table data format. Here are links for format example and table i want

const data = [
    [
        "team",
        "year",
        "product",
        "downTime",
        "totalCount"
    ],
    {
        "metrics": [
            24965836704,
            25161192
        ],
        "children": [
            {
                "name": "UNDEFINED",
                "metrics": [
                    14697807552,
                    6858384
                ],
                "children": [
                    {
                        "name": "2021",
                        "metrics": [
                            14697807552,
                            6858384
                        ],
                        "children": [
                            {
                                "name": "UNDEFINED",
                                "metrics": [
                                    null,
                                    null
                                ]
                            },
                            {
                                "name": "cola",
                                "metrics": [
                                    14697807552,
                                    6858384
                                ]
                            }
                        ]
                    }
                ]
            },
            ...another object just like above
        ]
    }
]

In short I want this piece of data above to be in form of like:

[
  { team: 'UNDEFINED', year: '2021', product: 'cola', downTime: 14697807552, totalCount: 6858384},
  { team: 'UNDEFINED', year: '2021', product: 'cola', downTime: 14697807552, totalCount: 6858384},
  ...
];

Any help is appreciated!

Answer 1

Maybe this works for you. it take the metrics from the final level.

 const getFlat = (array, keys, level = 0) => array.flatMap(o => { const q = { [keys[level]]: o.name }, m = Object.fromEntries(keys.slice(-2).map((k, i) => [k, o.metrics[i]])); return o.children? getFlat(o.children, keys, level + 1).map(p => ({...q, ...p })): {...q, ...m }; }), data = [["team", "year", "product", "downTime", "totalCount"], { metrics: [24965836704, 25161192], children: [{ name: "UNDEFINED", metrics: [14697807552, 6858384], children: [{ name: "2021", metrics: [14697807552, 6858384], children: [{ name: "UNDEFINED", metrics: [null, null] }, { name: "cola", metrics: [14697807552, 6858384] }] }] }] }], [keys, { children: array }] = data, result = getFlat(array, keys, 0); console.log(result);

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