猫鼬模型，为什么我需要使用“ new”？ （TypeScript）

Question

I don't understand this completely, as you will see.

But I create a new mongoose.model like this:

let MyModel = moongoose.model<IMyModel>("myModel", MyModelSchema);

What is the diffrence on MyModel and let newModel = new MyModel ?

I need to create newModel to use function such as .save() . Why is that?

Answer 1

当使用moongoose.model ，您不是在创建模型的实例，而是在为其创建构造函数-换句话说， MyModel是一个类，而newModel是该类的实例。