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我有以下代码:为什么猫鼬代码中的回调文件为空?
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/test')
var Schema = mongoose.Schema;
var schema = new Schema({name : String, inventory: {}});
var Character = mongoose.model('Character',schema);
var Frodo = new Character({name: 'Frodo',inventory:{ringOfPower: 1}});
Frodo.save();
Character.findOne({name : 'Frodo'},function(error, character){
console.log(character);
});
我运行它作为节点optionminimize.js和空是越来越记录到console.It MongoDB中得到了坚持好吧,我开了一个MongoDB的外壳和跑
db.characters.findOne({name:'Frodo'})
,并得到以下结果:
{
"_id" : ObjectId("582fc3bab386f00ed0e7fede"),
"name" : "Frodo",
"inventory" : {
"ringOfPower" : 1
},
"__v" : 0
}
为什么在回调文件参数接收空?