Answer
Value providers supply literal constants.
Factory providers generate values dynamically using logic or dependencies.
Factory providers generate values dynamically using logic or dependencies.
Quick Answer
Value provider: provide a static value for a token (useValue: myConfig). Factory provider: use a function to create the service (useFactory: () => new MyService(dep), deps: [Dep]) - enables conditional creation logic or passing constructor args. Class provider (useClass): use a different class than the token. Existing provider (useExisting): alias one token to another. Factories are for complex initialization logic.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
Want to bookmark, take notes, or join discussions?
Sign in to access all features and personalize your learning experience.
Source: SugharaIQ