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add Layer 2 JRPG component system Add reusable content and window modals, an isolated component sandbox, shared cyberpunk scroll areas, production-safe cache freshness, and server-rendered JRPG panel state. Co-authored-by: Copilot <[email protected]>
author MrJuneJune <me@mrjunejune.com>
date Sat, 08 Aug 2026 02:08:08 -0700
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1 # `react`
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2
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3 React is a JavaScript library for creating user interfaces.
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5 The `react` package contains only the functionality necessary to define React components. It is typically used together with a React renderer like `react-dom` for the web, or `react-native` for the native environments.
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7 **Note:** by default, React will be in development mode. The development version includes extra warnings about common mistakes, whereas the production version includes extra performance optimizations and strips all error messages. Don't forget to use the [production build](https://reactjs.org/docs/optimizing-performance.html#use-the-production-build) when deploying your application.
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9 ## Usage
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11 ```js
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12 import { useState } from 'react';
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13 import { createRoot } from 'react-dom/client';
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15 function Counter() {
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16 const [count, setCount] = useState(0);
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17 return (
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18 <>
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19 <h1>{count}</h1>
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20 <button onClick={() => setCount(count + 1)}>
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21 Increment
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22 </button>
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23 </>
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24 );
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25 }
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27 const root = createRoot(document.getElementById('root'));
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28 root.render(<App />);
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29 ```
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31 ## Documentation
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32
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33 See https://reactjs.org/
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35 ## API
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36
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37 See https://reactjs.org/docs/react-api.html