MemotivaVirtual DOM and Reconciliation

What is the difference between re-rendering and repainting?

Virtual DOM and Reconciliation

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What is the difference between re-rendering and repainting?

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Re-rendering is a React concept meaning the component function runs again to produce a new virtual DOM. Repainting is a browser concept meaning the actual pixels on screen are redrawn. A re-render only causes a repaint if the real DOM actually changes.