class ClassOne {
property1 = true;
}
type Instantiable = { new(...args: any[]): ClassOne };
Is it possible to extract the ClassOne directly from the Instantiable type? If that's the case, then how?
Is it possible to extract the instance type from the instantiable type?
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1 Answers
TypeScript provides a utility type called InstanceType. You can use it like this:
class ClassOne {
property1 = true;
}
type Instantiable = { new(...args: any[]): ClassOne };
type T = InstanceType<Instantiable>;
Under the hood it uses the infer keyword within a conditional type:
type InstanceType<T extends abstract new (...args: any) => any> = T extends abstract new (...args: any) => infer R ? R : any
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