<ul><li>Web rendering is crucial for user experience and performance optimization.</li><li>During web rendering, the browser goes through stages like parsing HTML, CSSOM construction, render tree construction, layout (reflows), painting (repaints), and compositing.</li><li>Reflows occur when changes to the DOM affect layout, while repaints only affect visual styling.</li><li>Reflows are computationally heavier than repaints and can cause performance issues if frequent.</li></ul>

Understanding Web Rendering: Reflows, Repaints, and Performance Optimization

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