add a protected static method to a class in typescript

To add a protected static method to a class in TypeScript, you can simply define the method with the protected keyword within the class definition. Here's an example:

index.ts
class MyClass {
  protected static myProtectedMethod() {
    console.log("This is a protected static method.");
  }
}
118 chars
6 lines

In this example, we've added a protected static method named myProtectedMethod to the MyClass class. This method can only be accessed within the class itself and any subclasses that may extend MyClass.

To call this protected static method from within the class or a subclass, you can use the super keyword:

index.ts
class MySubClass extends MyClass {
  callProtectedStaticMethod() {
    super.myProtectedMethod();
  }
}

const mySubClass = new MySubClass();
mySubClass.callProtectedStaticMethod(); // This is a protected static method.
220 chars
9 lines

In this example, we've created a subclass of MyClass called MySubClass. We've defined a method named callProtectedStaticMethod that calls the myProtectedMethod using the super keyword.

Hope this helps!