/**
 * Toggles a specified CSS class on an element identified by its ID.
 * If the class is present, it's removed; if absent, it's added.
 */
function toggleElementClass(elementId, className) {
  const element = document.getElementById(elementId);

  if (element) {
    element.classList.toggle(className);
    console.log(`Toggled class "${className}" on #${elementId}. Current classes: ${element.classList}`);
  } else {
    console.error(`Element with ID "${elementId}" not found.`);
  }
}

// Example Usage (assuming an HTML element with id='myButton' exists):
// <button id="myButton" class="active">Click Me</button>
// function handleClick() {
//   toggleElementClass('myButton', 'active');
//   toggleElementClass('myButton', 'highlight');
// }
// document.getElementById('myButton').addEventListener('click', handleClick);