Which of the following is the correct way to check a feature flag in a Spring Boot controller method?

easy📝 Syntax Q12 of 15

Spring Boot - Advanced Patterns

Aif(featureFlagService.isFeatureEnabled("newFeature")) { ... }

Bif(featureFlagService.checkFlag("newFeature")) { ... }

Cif(featureFlagService.enableFeature("newFeature")) { ... }

Dif(featureFlagService.toggleFeature("newFeature")) { ... }

Step-by-Step Solution

Solution:

Step 1: Recall typical method naming for feature flags
Common method to check if a feature is enabled is named like isFeatureEnabled.
Step 2: Match method name with options
Only if(featureFlagService.isFeatureEnabled("newFeature")) { ... } uses isFeatureEnabled which clearly indicates checking status.
Final Answer:
if(featureFlagService.isFeatureEnabled("newFeature")) { ... } -> Option A
Quick Check:
Check feature flag with isFeatureEnabled() [OK]

Quick Trick: Look for method named isFeatureEnabled() to check flags [OK]

Common Mistakes:

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