Javascript 是否有快捷方式或更短的语法来单独接收req.body的内容？

我想保存req中的author_id，它不是表单的一部分，而是URL中的一个变量参数

目前，我正在分别从req.body和author\u id以及req.user.id添加表单参数，并通过组合上述两个参数创建一个新对象

router.post("/", middleware.isLoggedIn, function(req, res){
  // get data from form and add to campgrounds array
  var name = req.body.name;
  var image = req.body.image;
  var desc = req.body.description;
  var author = { //not a part of req.body but I want to add it in new object
      id: req.user._id,
      username: req.user.username
  }
  var price = req.body.price;
    var location = req.body.location;
    var newCampground = {name: name, image: image, description: desc, price: price, author:author, location: location};
    Campground.create(newCampground, function(err, newlyCreated){
        if(err){
            console.log(err);
        } else {
            res.redirect("/campgrounds");
        }
    });
  });

---

我想要一种更短的格式或方法来实现这一点，因为来自req.body的数据将来可能会变得更大&我不想单独提取所有内容并将其与我的作者密钥结合起来。

对于ES6，您可以分解结构，并使用速记属性名称：

const { name, image, description, price, location, user } = req.body;
const author = { id: user._id, username: user._username };
const newCampground = { name, image, description, price, location, author };

// or, without the intermediate `author` variable:

const newCampground = { name, image, description, price, location, author: { id: user._id, username: user._username } };

如果不想重复

req.body

中的所有非

user

属性两次，可以使用类似Lodash的：

---

使用ES6，您可以分解结构并使用速记属性名称：

const { name, image, description, price, location, user } = req.body;
const author = { id: user._id, username: user._username };
const newCampground = { name, image, description, price, location, author };

// or, without the intermediate `author` variable:

const newCampground = { name, image, description, price, location, author: { id: user._id, username: user._username } };

如果不想重复

req.body

中的所有非

user

属性两次，可以使用类似Lodash的：