Design Patterns · Junior · Question 69 of 75

What are feature flags (feature toggles)?

✓Correct answer: Switches that enable or disable features at runtime without redeploying code
2CSS classes for hiding elements
3Git branches for each feature

Explanation

They allow gradual rollouts, A/B tests and quick kill switches, but old flags must be removed to avoid clutter.

Further reading

Martin Fowler: Feature Toggles ↗

Test yourself

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