📖 Step 6: Development#161 / 291

State Management

State Management

📖One-line summary

Keeping and sharing data like login status or cart contents across screens.

💡Easy explanation

Remembering 'what's going on right now' in an app. Cart count, logged-in user name — info shared across screens.

Example

A single state shared across multiple components

State: count = 0

Header

0

Cart

0

Badge

0

Vibe coding prompt examples

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Build a cart state store with Zustand. Include add item, remove item, update quantity, and total price calculation.

>_

Build a Context that manages user auth info and theme settings as global state. Sync with localStorage so it persists across reloads.

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