@visactor/vchart/esm/data/transforms/map.js

charts lib based @visactor/VGrammar

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

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

export const map = (data, opt) => {
    const options = isFunction(opt) ? opt() : opt, features = data.features;
    return features && features.forEach(((f, index) => {
        var _a, _b;
        f[DEFAULT_DATA_INDEX] = index;
        const name = null === (_a = f.properties) || void 0 === _a ? void 0 : _a[options.nameProperty], mappedName = null === (_b = options.nameMap) || void 0 === _b ? void 0 : _b[`${name}`];
        f[DEFAULT_MAP_LOOK_UP_KEY] = mappedName || name;
    })), features;
};
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