How to resolve the problem of cyclic dependencies when using dependency injection?

Cyclic dependencies in dependency injection occur when two or more components depend on each other directly or indirectly. To resolve this issue, you can:

• Use lazy initialization to delay the creation of dependencies until they are actually needed.
• Inject dependencies through interfaces or abstractions to break the direct link.
• Review the architecture and extract common dependencies into a separate service.
• Use the "Factory" pattern to create objects and avoid cycles.

Example of lazy initialization in TypeScript with Angular:

@Injectable()
class ServiceA {
  constructor(@Inject(forwardRef(() => ServiceB)) private serviceB: ServiceB) {}
}

@Injectable()
class ServiceB {
  constructor(private serviceA: ServiceA) {}
}

Here, forwardRef helps resolve the cyclic dependency.