function handleTocButtonClick()

in scripts/navigation-loader.js [185:195]

• 11 lines of code
• 2 McCabe index (conditional complexity)

function handleTocButtonClick(event, navId) {
  const tocPart = document.getElementById(navId);
  if (!tocPart) {
    return;
  }
  tocPart.classList.toggle(TOC_PART_HIDDEN_CLASS);
  const isExpandedTOCPart = !tocPart.classList.contains(TOC_PART_HIDDEN_CLASS);
  const button = tocPart.querySelector('button');
  button?.setAttribute("aria-expanded", `${isExpandedTOCPart}`);
  safeSessionStorage.setItem(`${TOC_STATE_KEY_PREFIX}${navId}`, `${isExpandedTOCPart}`);
}