Class console

function measuringExecutionTime() {
  const label = "myFunction() time"; // Labels the timing log entry.
  console.time(label); // Starts the timer.
  try {
    myFunction(); // Function to time.
  } catch (e) {
    // Logs an ERROR message.
    console.error("myFunction() yielded an error: " + e);
  }
  console.timeEnd(label); // Stops the timer, logs execution duration.
}

function myFunction() {
  // ...
}