Scratch file I use when experimenting with Node.js code

scratch.js

const { hrtime } = process;

(async () => {
  const debugStartTime = hrtime();

  // do stuff

  const debugEndTime = hrtime(debugStartTime);
  console.log(
    `Execution time: ${debugEndTime[0] * 1000 + debugEndTime[1] / 1000000}ms`,
  );
})();