test.js

const { Crypto } = require("@peculiar/webcrypto");
global.crypto = new Crypto();
require("fast-text-encoding");

const jsdom = require("jsdom");
const { window } = new jsdom.JSDOM(``, { runScripts: "outside-only" });
global.btoa = window.btoa;
global.atob = window.atob;

const SALT = "247 213 94 9 15 236 156 48 194 177 107 216 198 215 169 239";

async function hashPassword(password) {
  const binaryPassword = new TextEncoder().encode(password);
  const cryptoKey = await crypto.subtle.importKey(
    "raw",
    binaryPassword,
    "PBKDF2",
    false,
    ["deriveBits"],
  );

  const options = {
    name: "PBKDF2",
    hash: "SHA-256",
    salt: new Uint8Array(SALT.split(" ").map(Number)),
    iterations: 10_000,
  };

  const keyBuffer = new Uint8Array(
    await crypto.subtle.deriveBits(options, cryptoKey, 256),
  );

  const compositeStr = Array.from(keyBuffer)
    .map(byte => String.fromCharCode(byte))
    .join("");

  return btoa(compositeStr);
}

hashPassword('example').then(console.log);