@visactor/vchart/esm/data/transforms/obj-flat.js

charts lib based @visactor/VGrammar

import { PREFIX } from "../../constant/base";

import { DEFAULT_DATA_INDEX, DEFAULT_DATA_KEY } from "../../constant/data";

import { isValid } from "@visactor/vutils";

export const objFlat = (data, op) => {
    var _a;
    const dataCollect = (null === (_a = data[0]) || void 0 === _a ? void 0 : _a.latestData) ? data[0].latestData : data || [], result = [];
    let index = 0;
    return dataCollect.forEach((datum => {
        const dataKeyObj = {};
        let dataKey;
        for (const key in datum) key === op || key.startsWith(PREFIX) || (dataKeyObj[key] = datum[key], 
        dataKey = isValid(dataKey) ? `${dataKey}_${datum[key]}` : `${datum[key]}`);
        const dataOp = datum[op];
        null == dataOp || dataOp.forEach(((d, i) => {
            result.push(Object.assign({}, dataKeyObj, d, {
                [DEFAULT_DATA_INDEX]: index,
                [DEFAULT_DATA_KEY]: `${dataKey}_${i}`
            })), index++;
        }));
    })), result;
};
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