How React Reconciliation Works

React is fast! Some of that speed comes from updating only the parts of the DOM that need it. Less for you to worry about and a speed gain to boot. As long as you understand the workings of setState(), you should be good to go. However, it’s also important to familiarize yourself with how this amazing library updates the DOM of your application. Knowing this will be instrumental in your work as a React developer.

The DOM?
The …
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