3 Hours beginner
1. The Virtual DOM & Reconciliation
Internals
Thinking in React
The core of React's power is the Virtual DOM. Instead of directly manipulating the slow browser DOM for every change, React creates a lightweight copy in memory.
🚀 The Diffing Algorithm
When state changes, React compares the new Virtual DOM with the old one (Diffing) and calculates the minimum number of changes needed to update the real DOM (Reconciliation).
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