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Browser Basics Behind React

Pause here and make sure the main ideas feel clear before moving to the next chapter.

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What you should understand now

Understand the DOM, events, Shadow DOM, and React rendering model so React feels less magical.

What the DOM is

Learn the browser tree React eventually updates.

React render and commit

Understand how React decides and applies UI changes.

Event bubbling

Learn why parent handlers can hear child clicks.

Shadow DOM and React

Know what Shadow DOM is and why it is different from normal React components.

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