从TypeScript中的另一个文件导入类

Question

My problem is that I want to use my Appointment class in my app.ts file.

I reference it in my app.ts on the top:

/// <reference path="Appointment.ts"/>

Then I instantiate it and print the clientID:

var app : Appointment = new Appointment(1, 2, "User", 3);;

console.log(app.ClientID);

But then I get ReferenceError: Appointment is not defined

I also added the .js script of Appointment to my html file.

My Appointment looks like this:

class Appointment {
    // some properties

    constructor(clientID: number, state: number, userCreated: string, activityID: number) {
        // constructor
    }
}

Answer 1

Your script references should look like this (order is important... and .js file extension is important too!)

<script src="Appointment.js"></script>
<script src="app.js"></script>