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model view controller - TypeScript exports is not defined

I'm trying to use export and import but it not working I get an error

Here is my code HTML :

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
    @RenderBody()

    <script src="~/scripts/user.js"></script>
    <script src="~/scripts/main.js"></script>
</body>
</html>

User.ts :

export class User {
    firstName: string;
    lastName: string;
}

main.ts

import { User } from "./user";

Here is also screenshot of exception :

enter image description here

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1 Answer

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by (71.8m points)

You have a couple of options:

Option 1: Use a module loader like Webpack, Browserify, etc.

Option 2: If you just want to compile *.ts to *.js without any module imports or exports, set compilerOptions.module to "none" in your tsconfig.json. Note that you won't be able to export/import modules when you set compilerOptions.module to "none".


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