// Stopwatch functions let startTime; // Function to start the stopwatch function startStopwatch() { startTime = new Date(); } // Function to stop the stopwatch and calculate elapsed time function stopStopwatch() { const endTime = new Date(); const elapsedTime = endTime - startTime; console.log('Elapsed Time (ms):', elapsedTime); } // Starting the stopwatch startStopwatch(); // Performing some tasks... // Stopping the stopwatch after performing tasks stopStopwatch();