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JavaScript Basics
Learn the JavaScript language fundamentals — variables, types, control flow, arrays, objects, and functions — by running small programs in the console.
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React Fundamentals/Lesson 04 — State
●App.tsx
●styles.css
1
import { useState } from "react"2
3
export default function App() {4
const [count, setCount] = useState(0)5
6
return (7
<main className="counter">8
<h1>Counter</h1>9
<p className="count">{count}</p>10
<button>11
</button>12
</main>13
)14
}Tests
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renders the dashboard route
loads data with React Query
handles the empty state
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