UPDATE t_question SET returned=!(returned) code example

Example: returned value by findOneAndUpdate

const filter = { age: 17 };
const doc = { $set: { name: "Naomi" } };
const options = { new: true };

Cat.findOneAndUpdate(filter, doc, options, (err, doc) => {
    if (err) console.log("Something wrong when updating data!");
    console.log(doc);
});