[Solved] Identify the error in the following code snippet using a dependency injection framework:class ServiceB {} const serviceB = injector.get(ServiceB); injector.register(ServiceB); | LLD

LLD - Advanced LLD Concepts

Identify the error in the following code snippet using a dependency injection framework:

class ServiceB {}

const serviceB = injector.get(ServiceB);
injector.register(ServiceB);

AServiceB is registered after trying to get it

BServiceB class is missing a constructor

Cinjector.get should be injector.fetch

Dinjector.register should be called twice

Step-by-Step Solution

Solution:

Step 1: Check the order of registration and retrieval
The code tries to get ServiceB from the injector before registering it, which causes an error because the injector doesn't know about ServiceB yet.
Step 2: Confirm correct usage order
Services must be registered before they can be retrieved from the injector.
Final Answer:
ServiceB is registered after trying to get it -> Option A
Quick Check:
Register before get = correct order [OK]

Quick Trick: Always register before getting a service [OK]

Common Mistakes:

MISTAKES

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