In TypeScript, what specific term denotes a type of data?

Given the following code snippet:


class Foo {
}

interface TypeProvider() {
    type(): ?;
}

class Bar implements TypeProvider {
    type(): ? {
        return (Foo);
    }
}

class Baz implements TypeProvider {
    type(): ? {
        return (Bar);
    }
}

If I am returning a class from a method, what should be the type assigned to the method signature?

Also, is there any difference between return (Foo) and return Foo? If they are different, I would prefer the former.

Answer №1

The proper way is to use the Foo constructor:

class Bar {
    defineType(): { new(): Foo } {
        return (Foo);
    }
}

Alternatively, you can do it this way:

interface FooConstructor {
    new(): Foo;
}

class Bar {
    defineType(): FooConstructor {
        return (Foo);
    }
}

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