我非常喜欢异步/等待功能的Express/Mongoose应用程序中的这种模式:

app.delete('/:idToDelete', asyncHandler(async (req, res) => {
  const deletedItem = await YourModel
    .findByIdAndDelete(req.params.idToDelete) // This method is the nice method for deleting
    .catch(err => res.status(400).send(err.message))

  res.status(200).send(deletedItem)
}))

概括来说，你可以使用:

SomeModel.find( $where, function(err,docs){
  if (err) return console.log(err);
  if (!docs || !Array.isArray(docs) || docs.length === 0) 
    return console.log('no docs found');
  docs.forEach( function (doc) {
    doc.remove();
  });
});

实现这一目标的另一种方法是:

SomeModel.collection.remove( function (err) {
  if (err) throw err;
  // collection is now empty but not deleted
});

简单的做

FBFriendModel.remove().exec();

对于删除文档，我更喜欢使用Model。(回调)remove(条件)

请参考API文件删除:-

http://mongoosejs.com/docs/api.html#model_Model.remove

对于这种情况，代码将是:-

FBFriendModel.remove({ id : 333 }, function(err, callback){
console.log(‘Do Stuff’);
})

如果你想在不等待MongoDB响应的情况下删除文档，不传递回调，那么你需要对返回的查询调用exec

var removeQuery = FBFriendModel.remove({id : 333 });
removeQuery.exec();

model.remove({title:'danish'}, function(err){
    if(err) throw err;
});

裁判:http://mongoosejs.com/docs/api.html # model_Model.remove

我非常喜欢异步/等待功能的Express/Mongoose应用程序中的这种模式:

app.delete('/:idToDelete', asyncHandler(async (req, res) => {
  const deletedItem = await YourModel
    .findByIdAndDelete(req.params.idToDelete) // This method is the nice method for deleting
    .catch(err => res.status(400).send(err.message))

  res.status(200).send(deletedItem)
}))