Recursive generator function to list all files in a directory in Node.js

list-all-files.ts

import fs from 'node:fs/promises';
import path from 'node:path';

async function* readAllFiles(dir: string): AsyncGenerator<string> {
  // use fs.readdirSync() to avoid async
  const files = await fs.readdir(dir, { withFileTypes: true });

  for (const file of files) {
    if (file.isDirectory()) {
      yield* readAllFiles(path.join(dir, file.name));
    } else {
      yield path.join(dir, file.name);
    }
  }
}