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Micro State Management with React Hooks

You're reading from   Micro State Management with React Hooks Explore custom hooks libraries like Zustand, Jotai, and Valtio to manage global states

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Product type Paperback
Published in Feb 2022
Publisher Packt
ISBN-13 9781801812375
Length 254 pages
Edition 1st Edition
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Author (1):
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Daishi Kato Daishi Kato
Author Profile Icon Daishi Kato
Daishi Kato
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Table of Contents (16) Chapters Close

Preface 1. Part 1: React Hooks and Micro State Management
2. Chapter 1: What Is Micro State Management with React Hooks? FREE CHAPTER 3. Part 2: Basic Approaches to the Global State
4. Chapter 2: Using Local and Global States 5. Chapter 3: Sharing Component State with Context 6. Chapter 4: Sharing Module State with Subscription 7. Chapter 5: Sharing Component State with Context and Subscription 8. Part 3: Library Implementations and Their Uses
9. Chapter 6: Introducing Global State Libraries 10. Chapter 7: Use Case Scenario 1 – Zustand 11. Chapter 8: Use Case Scenario 2 – Jotai 12. Chapter 9: Use Case Scenario 3 – Valtio 13. Chapter 10: Use Case Scenario 4 – React Tracked 14. Chapter 11: Similarities and Differences between Three Global State Libraries 15. Other Books You May Enjoy

Exploring useState and useContext

By combining useState and useContext, we can create a simple global state. Let's recap on how to use useState without useContext, how useContext works for static values, and how we combine useState and useContext.

Using useState without useContext

Before diving into useContext, let's be reminded of how to useState, with a concrete example. This example is going to be a reference for the following examples in the chapter.

Here, we define a count state with useState higher in the component tree and pass the state value and the update function down the tree.

In the App component, we use useState and get count and setCount, which are passed to the Parent component. The code is illustrated in the following snippet:

const App = () => {
  const [count, setCount] = useState(0);
  return <Parent count={count} setCount={setCount} />;
};

This is a very basic pattern, which we know as lifting the state up...

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