TypeScript: Class Inheritance Issues When Overriding Method with Different Parameter Types
I'm stuck on something that should probably be simple. I'm working with an scenario with TypeScript class inheritance where I'm trying to override a method in a subclass, but I'm getting a type behavior related to parameter types. The base class `Animal` has a method `speak` that accepts a string, but when I try to override it in the `Dog` subclass to accept an object instead, TypeScript throws an behavior. Here’s what I have so far: ```typescript class Animal { speak(sound: string): void { console.log(`The animal makes a sound: ${sound}`); } } class Dog extends Animal { speak(sound: { bark: string }): void { console.log(`The dog barks: ${sound.bark}`); } } ``` When I attempt to create an instance of `Dog` and call `speak`, like this: ```typescript const myDog = new Dog(); myDog.speak({ bark: 'Woof!' }); ``` I get the following behavior: ``` Argument of type '{ bark: string; }' is not assignable to parameter of type 'string'. ``` I've tried changing the method in the subclass to match the parameter type of the base class, but this defeats the purpose of overriding. I thought TypeScript allowed method overriding with different parameter types as long as they are compatible. Am I missing something in terms of TypeScript's rules around method overriding, or is there a different pattern I should be using here? Any suggestions on how to resolve this while maintaining clear object-oriented principles would be greatly appreciated! For context: I'm using Typescript on Windows 11. Thanks, I really appreciate it! Am I approaching this the right way? My development environment is CentOS. Cheers for any assistance! I'd really appreciate any guidance on this.