djangoでいいね機能を作りたいがエラーが起きる

Question

以下のサイトを参考に、良いね機能を作ろうとしました。
https://h-memo.com/how-to-make-a-like-button-using-django/

しかし、以下のようなエラーが起きてしまいます。どうすれば解決できるでしょうか。

Internal Server Error: /like
Traceback (most recent call last):
  File "/home/igarashi/.local/lib/python3.9/site-packages/django/core/handlers/exception.py", line 55, in inner
    response = get_response(request)
  File "/home/igarashi/.local/lib/python3.9/site-packages/django/core/handlers/base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/igarashi/project_join/joinapp/views.py", line 53, in LikeView
    if request.is_ajax():
AttributeError: 'WSGIRequest' object has no attribute 'is_ajax'

エラーの該当箇所は以下です。

def LikeView(request):
    if request.method =="POST":
        article = get_object_or_404(Joinn, pk=request.POST.get('article_id'))
        user = request.user
        liked = False
        like = Like.objects.filter(article=article, user=user)
        if like.exists():
            like.delete()
        else:
            like.create(article=article, user=user)
            liked = True
    
        context={
            'article_id': article.id,
            'liked': liked,
            'count': article.like_set.count(),
        }

    if request.is_ajax():
        return JsonResponse(context)