Node.js type="module" path and fs helper. Put the file in the root folder

io.js

import { fileURLToPath } from "url";
import { dirname, join } from "path";
import { createReadStream, createWriteStream, existsSync, readFileSync, unlinkSync } from "fs";

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

const io = Object.freeze({
    join,
    existsSync,
    unlinkSync,
    createReadStream,
    createWriteStream,
    readFileSync,
    path: args => join(__dirname, args)
});

export default io;