message: fix indent, es6 typo
diff: @@ -268,9 +268,7 @@ export const toggleClass = (el: ?HTMLElement, className: ?string | ?string[], st
  if (!el || !className) return;
  if (Array.isArray(className)) {
  - className.forEach(function (item) {
  - toggleClass(el, item, status);
  - });
  + className.forEach(item => toggleClass(el, item, status));
  return;
  }
  