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Why might providing a service in a component's providers array cause unexpected behavior in an Angular app?

hard🧠 Conceptual Q10 of 15
Angular - Services and Dependency Injection
Why might providing a service in a component's providers array cause unexpected behavior in an Angular app?
ABecause it disables dependency injection for that service.
BBecause Angular does not support component-level providers.
CBecause it creates multiple instances, breaking singleton assumptions.
DBecause it forces the service to be global.
Step-by-Step Solution
Solution:

  1. Step 1: Understand component providers effect

    Providing a service in a component creates a new instance per component, not a singleton.

  2. Step 2: Recognize impact on app behavior

    This can break assumptions that the service is a singleton, causing unexpected state or data issues.

  3. Final Answer:

    Because it creates multiple instances, breaking singleton assumptions. -> Option C

  4. Quick Check:

    Component providers create multiple instances, not singleton [OK]
Quick Trick: Component providers create multiple instances, not singleton [OK]
Common Mistakes:
MISTAKES
  • Thinking component providers disable DI
  • Believing component providers make service global
  • Assuming Angular disallows component providers

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