'Typescript: Using nested generic class type
I am trying to use a nested class type generic. Let's say I have the following code:
class Base {
property: string|undefined;
}
class A extends Base {
aProperty: string | undefined;
}
class B extends Base {
aProperty: string | undefined;
}
function createFunc<T extends Base>(c: new () => T): T {
return new c();
}
class GenericClass<T extends Base> {
constructor() {
// This doesn't work. But why?
const typeProperty = createFunc(T);
}
}
// This works however. Not using the nested generic
createFunc(Base)
Does anyone know why this doesn't work? Is this a bug or intended behaviour and what would be a workaround?
I read about it here but it doesn't really explain why this shouldn't work. https://www.typescriptlang.org/docs/handbook/2/generics.html#using-class-types-in-generics
Sources
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