console.log() with time offset

startTrackTime.ts

function startTrackTime() {
  console.log(`  s, ms, μs, ns`);
  console.log(`000,000,000,000: start`);
  const start = process.hrtime.bigint();
  return function trackTime(message: string = '-') {
    const end = process.hrtime.bigint();
    console.log(
      `${String(end - start)
        .padStart(12, '0')
        .replace(/(.{3})/g, '$1,')
        .replace(/,$/, '')}: ${message}`
    );
  };
}

const trackTime = startTrackTime();
trackTime('done this');
trackTime('done that');

// ❯ npx ts-node index.ts
//   s, ms, μs, ns
// 000,000,000,000: start
// 000,000,020,000: done this
// 000,000,080,000: done that