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Core Syntax
Complex

Reactive State Declaration with TypeScript

Declare strongly-typed reactive state for primitive values and objects in Vue 3 and React 18. Vue uses ref (for primitives) and reactive (for objects) with explicit TypeScript interfaces. React uses useState with generic type annotations to enforce type safety. This pattern ensures type consistency and prevents runtime errors in enterprise applications. Use cases: Basic component state management (counters, user info, form inputs).

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