type-constructor.ts

interface ClockConstructor {
    new (hour: number, minute: number): ClockInterface;
}

interface ClockInterface {
    tick(): any;
}

function createClock(ctor: ClockConstructor, hour: number, minute: number): ClockInterface {
    return new ctor(hour, minute);
}

class DigitalClock implements ClockInterface {
    constructor(h: number, m: number) {
        console.log();
    }
    tick() {
        console.log("beep beep");
    }
}
class AnalogClock implements ClockInterface {
    constructor(h: number, m: number) { }
    tick() {
        console.log("tick tock");
    }
}

let digital = createClock(DigitalClock, 12, 17);
digital.tick();

let analog = createClock(AnalogClock, 7, 32);

Type constructor Typescript interface ClockConstructor {new (hour: number, minute: number): ClockInterface;}