In my application, I have something like this:

user.ts

export class User { ... }

and right now, I do this:

app.component.ts

callAnotherFunction(User);

How can I do this if I have the class name as a string, that is User? If possible, how would I check if the variable really is a usable class?

For example:

let test = User;



if (**test is really a usable class**) {

    console.log(Yay!);

    callAnotherFunction(**something to put here**);

} else {

    console.log(Error!);

}

I am not sure if this is even possible, but thanks for your input already.

All I have found so far is examples like these:

let test = User;

let user = new window[test]();

But user would then be an instance of User. Additionally, it does not seem to work in my Angular 2 application - probably a scope error. If I wanted to try this, what would I need to use instead of window?