36 lines
647 B
TypeScript
36 lines
647 B
TypeScript
import React, { useRef, useState } from '../../lib/teact/teact';
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export function App() {
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const [trigger, setTrigger] = useState(false);
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return (
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<div
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className="App"
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onClick={() => {
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setTrigger((current) => !current);
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}}
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>
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<h2>Click to update</h2>
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{trigger ? (
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<>
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<span>fragment</span>
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<span>content</span>
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</>
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) : undefined}
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<Child />
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</div>
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);
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}
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function Child() {
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const idRef = useRef(String(Math.random()).slice(-4));
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return (
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<div>
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This number should never change: {idRef.current}
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</div>
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);
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}
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export default App;
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