const perfTest = (name, setup, test) => {
  console.log(`Starting performance test: ${name}`);
  const times = [];
  for (let i = 0; i < 100; i++) {
    const data = setup();
    const start = performance.now();
    test(data);
    times.push(performance.now() - start);
    if (i % 10 === 0) {
      console.log(`Completed ${i} runs`);
    }
  }
  const avgTime = times.reduce((a, b) => a + b, 0) / times.length;
  console.log(`Average time over 100 runs: ${avgTime.toFixed(6)} ms`);
}

perfTest(
  'Small map key access',
  () => new Map().set(1, 1).set(2, 2),
  (data) => data.keys().next().value
);
perfTest(
  'Large map key access',
  () => [...Array(100000).keys()].map(() => crypto.randomUUID()).reduce((m, k) => m.set(k, k), new Map()),
  (data) => data.keys().next().value
);