Next.js 推出「Flags as Code」：用程式碼管理功能旗標，提升開發與渲染效能
Original: Flags as code in Next.js
Vercel has recently introduced a new feature flag management paradigm for Next.js called "Flags as Code." Traditionally, feature flags have…
Vercel 針對 Next.js 推出「Flags as Code」全新工作流，將功能旗標（Feature Flags）納入程式碼管理與 Git 版本控制。透過 `@vercel/flags` SDK，開發者可定義具備型別安全（Type-safe）的旗標，並與 Vercel Toolbar 深度整合，方便在預覽環境中直接切換。此方案優化了 Edge 網路的渲染效能，能有效減少客戶端版面跳動，並支援 LaunchDarkly 等主流第三方旗標服務。
Vercel has recently introduced a new feature flag management paradigm for Next.js called "Flags as Code." Traditionally, feature flags have been managed through backend dashboards of external third-party platforms (such as LaunchDarkly or Optimizely). While convenient for non-technical team members, this approach creates pain points for developers — including lack of type safety, difficulty in performing code reviews, and challenges in testing locally during development.
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