Gist 8420271

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✓ Published0🌍 Public

Last edited Jan 14, 2014

Created on Jan 14, 2014

This example demonstrates a React-style virtual DOM implementation using the `virtual-dom` library, showcasing a Todo app with animated state updates. The code builds a virtual DOM tree from observable state (via `observ`), renders it to a real DOM element, and uses a diffing algorithm to compute minimal changes between state versions. A requestAnimationFrame loop batches these patches and applies them at 60fps, ensuring smooth UI updates while preserving input focus and other temporary state. The visualization highlights how the virtual DOM approach separates concerns: `h` constructs virtual nodes, `render` creates the initial DOM, `diff` computes changes, and `batch`/`patch` apply them efficiently—all orchestrated with reactive observables and a delegator for events.

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