2025 10 03 08 LUIS OLIVEIRA CONGRESO REACT ALICANTE The international React js conference in Spai
summary
Feature flags let teams merge early and release gradually with real numbers — rollout can go 10% then 50% then 100% — and provide an instant kill switch that stops error propagation in production. They power hundreds of A/B experiments per page, support targeting, canary cohorts and regional compliance, and integrate with React via a provider, a hook and memoized flag values to avoid flicker. Follow concrete hygiene: set an owner and an expiry, centralized access and observe metrics; note AI-assisted workflows get confused by many flags.
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chapters (8)
- 0:00Introduction
- 1:13Feature flags matter
- 3:20Feature flags versus environment variables
- 4:28Feature flags in production
- 8:25Managing feature flags
- 10:12Avoiding feature flags
- 11:16Feature flags in React
- 12:03Closing remarks
