/TypeScript/How to set value to readonly property in typescript

How to set value to readonly property in typescript

beforeEach(() => {
    TestBed.configureTestingModule({
      providers: [
        MyService
      ]
    });
    service = TestBed.get(MyService);
    const timeIntervals = 'timeIntervals';
    Object.defineProperty(service, timeIntervals, { value: timeLists });
  });

Source: stackoverflow.com

How to set value to readonly property in typescript

Object.defineProperty(service, timeIntervals, { writable: true});

Source: stackoverflow.com

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