ReferenceError: Cannot access '__filename' before initialization in minimal-test.mjs

[Konard]

minimal-test.mjs

#!/usr/bin/env node
/**
 * Minimal reproducible sample for dynamic module loading
 */
import { fileURLToPath } from 'url';
import path from 'path';

// Dynamically load use-m
const { use } = eval(
  await fetch('https://unpkg.com/use-m/use.js').then(u => u.text())
);

// Load environment variables from .env
const { config } = await use('dotenv@16.1.4');
config({ path: path.resolve(process.cwd(), '.env') });

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

console.log('Current file name:', __filename);

Output

<anonymous_script>:183
  if (!scriptPath && typeof __filename !== 'undefined') {
  ^

ReferenceError: Cannot access '__filename' before initialization
    at makeUse (eval at <anonymous> (file:///Users/konard/Code/konard/kaiten-api-tools/minimal-test.mjs:9:17), <anonymous>:183:3)
    at use (eval at <anonymous> (file:///Users/konard/Code/konard/kaiten-api-tools/minimal-test.mjs:9:17), <anonymous>:214:19)
    at file:///Users/konard/Code/konard/kaiten-api-tools/minimal-test.mjs:14:26
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)

Node.js v22.15.0

Workaround 1

Remove declaration of __filename that goes after use initialization.

Workaround 2

Move declaration of __filename before use initialization.