SolidJS drops Virtual DOM for surgical reactivity

SolidJS represents a fundamental shift in UI architecture, proving that the Virtual DOM is no longer the gold standard for performance.

• –Fine-grained reactivity: State changes update the DOM surgically via Signals, eliminating the expensive "diff and patch" overhead characteristic of React.
• –Execution efficiency: Components run only once to set up the reactive graph, preventing the accidental re-render loops and performance degradations common in complex React apps.
• –Framework versatility: Beyond the web, its decoupled reactivity engine is increasingly being used for terminal interfaces (TUIs) and custom canvas renderers.
• –AI-friendly architecture: The predictable, run-once execution model makes it easier for LLMs to reason about and generate correct code compared to the complex lifecycle of React components.
• –Agentic UI potential: Surgical updates are ideal for agent-driven interfaces where background processes need to update specific UI elements without triggering full-tree re-renders.