Highmap gejson data format conversion script

highmap data source ：

Highmaps - Map Collection

Download it from the website above geojson Formatted data , Then use the following script to convert .

#!/usr/bin/env node
const fs = require('fs');
const proj4 = require('proj4');

const argvArr = process.argv; // Parameters 
const origialPath = argvArr[2]; //  The first parameter passed in , Read the file 
const outPath = argvArr[3]; //  The second parameter passed in , Save the file 

fs.readFile(origialPath,"utf-8", (err, data) => {
    if(err) {
        return console.error("read error: ", err);
    }
    const originalData = JSON.parse(data);
    const transform = originalData["hc-transform"].default;
    try{
        originalData.features.forEach(feature => {
            feature.geometry.coordinates.forEach(coord => {
                swap(coord, transform);
            })
            feature.properties = {
                name: feature.properties.n