<ul><li>The diffing algorithm works under the assumption that components are immutable — meaning that React assumes components don’t change over time but re-render with new data.</li><li>It uses heuristics to optimize the process of determining what parts of the DOM need to be updated.</li><li>React's diffing algorithm achieves efficient updates through element reuse, key props, and children diffing.</li><li>By comparing the new virtual DOM to the old one, React can minimize DOM manipulations and provide a fast user experience.</li></ul>

React Diffing Algo

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