我有下面的代碼:Mongoose創建空數組?
var questionSchema = new schema({
title: String,
subtitle: String,
required: Boolean,
type: String,
create_date: Date,
question_id: Number,
suvey_id: Number,
items: Array
});
var question = mongoose.model("Question", questionSchema);
var quest = getMyQuestion();
var record = new question({
title: quest.question,
subtitle: quest.subtitle,
required: quest.answer_required,
type: quest.question_type,
create_date: quest.create_date,
question_id: quest.id,
survey_id: quest.survey_id
});
record.save();
但是,當我拉這個記錄從我的數據庫總是有定義爲一個空數組(而不是不在那裏的話)的items
屬性。
貓鼬是否故意這樣做?如果是這樣,爲什對我來說,嘗試強制屬性不被定義(而不是被定義爲空數組)是不是一個好主意?