function updateTocView()

in themes/tfjs/source/js/api.js [41:72]

• 29 lines of code
• 7 McCabe index (conditional complexity)

  function updateTocView() {
    var top = window.scrollY;
    var found;
    var tocFound;
    var symbol;
    var sTop;

    for (var i = 0; i < refSymbols.length; i++) {
      symbol = refSymbols[i];
      sTop = symbol.offsetTop;
      if (sTop >= top) {
        found = symbol;
        break;
      }
    }

    if (found) {
      tocFound =
          tocArea.querySelector('[href="#' + found.getAttribute('name') + '"]');

      if (tocFound) {
        if (lastHighlightedTocElement) {
          lastHighlightedTocElement.classList.remove('highlighted');
        }
        tocFound.classList.add('highlighted');
        if (!isInViewport(tocFound)) {
          tocFound.scrollIntoView(false);
        }
        lastHighlightedTocElement = tocFound;
      }
    }
  }