code: function siblings(node) {
    if (node && node.parentNode) {
      var n = node.parentNode.firstChild;
      var matched = [];
  
      for (; n; n = n.nextSibling) {
        if (n.nodeType === 1 && n !== node) {
          matched.push(n);
        }
      }
  
      return matched;
    }
  
    return [];
  }
docs: Finds siblings nodes of the passed node.
  
  @param  {Element} node
  @return {Array}