What is the best way to initiate a class constructor with certain parameters left out?

Currently, I am facing a challenge while trying to pass various combinations of arguments to a class constructor. The constructor has 2 optional arguments. Here is the code snippet:

class MyClass {
  foo(a, b) {
    return new MyClass(a, b);
  }

  bar(a) {
    return new MyClass(a);
  }

  baz(b) {
    return new MyClass(b);
  }

constructor(a?: TypeA, b?: TybeB) {}
}

The first two instantiations are successful, however, the third attempt encounters an error: "Argument of TypeB is not assignable to parameter of TypeA". Baz(b) does work if I switch the order of parameters in the constructor to become constructor(b?: TybeB, a?: TybeA), but this results in foo(a, b) failing.

Is there an alternative approach to resolve this issue?

Answer №1

To solve this, make sure to invoke

create a new instance of MyClass and pass in undefined as the first argument and b as the second.

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