为什么我得到一个类型错误时寻找get请求一个特定的文章?

Question

我的代码如下…我应该能够键入文章/DOM并能够获得标题DOM的所有对象，但相反，我得到一个类型错误，即ArticleTitle未定义。请帮助!

app.route("/articles/:articleTitle").get( function(res,req) {

Article.findOne({title: req.params.articleTitle}, function(err,foundArticle){
if (foundArticle){
res.send(foundArticle)
} else{res.send("No article matching that title was found!")}
});
}
)

app.listen(3000, function() {
console.log("Server started on port 3000");
});

Answer 1

first argument应该是req,second argument应该是res，所以这样做:

app.route("/articles/:articleTitle").get( function(req, res) {})