Function isLeafNode

docs/2.2/js/navbar.js:23–25

($node)

    }

    function isLeafNode($node) {
        return !$node.siblings(class="st">'ul:not(.simple)').length;
    }

    var $current = $(class="st">'.sidebar a.current');
    if (isLeafNode($current) || requiresPageload($current) || isCurrentNode($current)) {