TYPESCRIPT

Make Object properties Readonly TypeScript

//Readonly
type MyReadonly<T> = {
	readonly [K in keyof T]: T[K];
};
interface TodoRead {
	title: string;
	description: string;
}

const todoRead: MyReadonly<TodoRead> = {
	title: 'Hey',
	description: 'foobar',
};

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 });
  });

how to set value to readonly property in typescript

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