CODEWITHSUNDEEP
typescriptvue.jsvue-componentabstract-class
gbrennon
gbrennon

Reputation: 979

How to create and extend a abstract class component in VueJS?

how are u doin?

So, i've been working in a new project for the company where I work.

We are going to develop a SDK to give to our third-party developers classes so they can build components to run in our application.

I want to write an ABSTRACT CLASS so I could force the developers to implement some methods.

How can I do this?

I was thinking about create a PURE TYPESCRIPT CLASS to build the ABSTRACT CLASS and then inherit it in my COMPONENT CLASS...

Something like:

abstract class AbstractClass {
  public abstract abstractMethod(): void
}

But how can I make this work with a vue component class?

Upvotes: 4

Views: 7074

Answers (1)

Estus Flask
Estus Flask

Reputation: 222503

vue-class-component can be used to define Vue components as TypeScript classes but it has a limitation regarding abstract classes.

Depending on how abstract methods are supposed to be used, additional checks can be added to enforce their implementation in children components, e.g.:

interface IFooComponent {
  bar(): void;
}

@Component({})
class BaseFooComponent extends Vue {
  ['bar' as string]()  {
    throw new Error('not implemented');
  }
}

// `implements` causes compilation error
class FooComponent extends BaseFooComponent implements IFooComponent {
  // bar() {}

  mounted() {
    this.bar(); // causes both compilation and runtime error
  }
}

Upvotes: 6

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