Mongo find() returns [object 对象] in express

Question

所以基本上我正在尝试从 header.ejs

访问页面集合

app.use(function(req,res,next){
    res.locals.pages= Pages.find();
    next();
});

但是当我尝试从 html 访问它时它显示 [object object]

当我在 console.log 上显示它时，它显示了很多

createIndexes instead.
Query {
  _mongooseOptions: {},
  _transforms: [],
  _hooks: Kareem { _pres: Map {}, _posts: Map {} },
  _executionCount: 0,
  mongooseCollection: 
   NativeCollection {
     collection: Collection { s: [Object] },
     opts: 
      { bufferCommands: true,
        capped: false,
        '$wasForceClosed': undefined },
     name: 'pages',
     collectionName: 'pages',
     conn: ....................

如何通过数组从 html 访问？

Answer 1

Pages.find() by default will return a cursor. You'll want to use a callback 处理您发现的内容：

app.use(function(req, res, next) {
  Pages.find({}, (err, pages) => {
    if (err) return next(err);
    res.locales.pages = pages;
    return next();
  });
});

查看 Converting an object to a string 获取有关如何将对象或数组转换为 string 的信息。默认情况下，当您将对象转换为字符串时，它将显示为 [object Object]（您可以通过执行 const a = {}; console.log({}.toString())）

Mongo find() returns [object 对象] in express

Mongo find() returns [object Object] in express

schema

mongoose

mongodb

express

mongoose-schema