如何查找某个项目是否存在于文档 mongoose 的数组中

Question

So I have queried a specific document by email from mongoose. The document has an Array called favoriteMovies . I want to now query the favoriteMovies Array and check if an item exists in there.

const user = new User({
    name: "bob",
    username: "champion",
    email: userEmail,
    favoriteMovies: [
        "Spider-Man: Far from Home",
        "logan",
        "Scarface",
        "Avengers"
    ],
    watchList: [],
    ratedMovies: []
});

Here is my query and it returns the entire Array, which is not the behavior I want.

User.find({ email: userEmail }, { favoriteMovies: "Joker" }, function (err, result) {
    console.log(err);
    console.log(result);
})

How would I find if an element is in the favoriteMovie array and possibly return true of the movie itself?

Answer 1

If you just need to check whether document matching the query is present, then you can use countDocument function

User.countDocuments({favoriteMovies: "Joker"}, (err, count) => {
  if (err) console.log(err);
  else {
    console.log(count);
  }
});