Angular · Junior · Question 32 of 75

What does `providedIn: 'root'` mean?

✓Correct answer: One shared instance for the whole application, created lazily on first injection
2A new instance is created for every component that injects it
3The service is only available to the root component

Explanation

Root services are singletons. If a component lists the service in its own providers, it gets a separate instance for itself and its children.

Further reading

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