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Creating a Dropdown Menu with JavaScript

Tutorial September 02, 2024
javascript

We’ll modify our JavaScript to update the `aria-expanded` attribute when the dropdown is toggled.

dropdownToggle.addEventListener('click', function (event) {
  event.preventDefault();
  const isExpanded = dropdownMenu.style.display === 'block';
  dropdownMenu.style.display = isExpanded ? 'none' : 'block';
  dropdownToggle.setAttribute('aria-expanded', !isExpanded);
});

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