simple uuid4 function

uuid4.js

// Recommended: use `crypto.randomUUID()` if available

// Fallback UUID v4 generator using crypto.getRandomValues
// (Secure & Portable)
const uuid4 = () =>
  "00000000-0000-4000-8000-000000000000".replace(/0/g, () =>
    (crypto.getRandomValues(new Uint8Array(1))[0] % 16).toString(16)
  );

/*
// Alternative random ID generator (non-UUID, NOT secure)
// Uses a character set optimized for gzip and brotli compression
function generateId(
  len = 8,
  base = "useandom26T198340PX75pxJACKVERYMINDBUSHWOLFGQZbfghjklqvwyzrict"
) {
  return Array.from({ length: len }, () => base[Math.floor(Math.random() * base.length)]).join("");
}
*/