BUG [TS2416]: Incorrect error reporting

[dalisoft]

Bug Report

🔎 Search Terms

• ts2416 class can't extend interface
• typescript interface string type cant assign
• Full message copy of error

🕗 Version & Regression Information

Playground link with relevant code

💻 Code

export interface IStoreApp {
  windowWidth: number;
  windowHeight: number;
  pageActive: boolean;
  isLoading: boolean;
  language: 'en' | 'ru' | 'tt'; // <-- This line
}
class App implements IStoreApp {
  // Environment observables
  @observable windowWidth = 0;

  @observable windowHeight = 0;

  @observable pageActive = true;

  // PWA environments
  @observable isLoading = true;

  // User observables
  @observable language = 'en'; // <-- This line
}
export default new App();

🙁 Actual behavior

Property 'language' in type 'App' is not assignable to the same property in base type 'IStoreApp'.
  Type 'string' is not assignable to type '"en" | "ru" | "tt"'.

🙂 Expected behavior

Working type validating with one of three available language

[MartinJohns]

Duplicate of #10570.

[typescript-bot]

This issue has been marked as a 'Duplicate' and has seen no recent activity. It has been automatically closed for house-keeping purposes.