init new course
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<!doctype html>
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<html lang="de">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Übung 23: Fetch API – Einfache Datenabfrage</title>
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<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css" rel="stylesheet" />
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</head>
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<body>
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<main>
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<div class="container py-5">
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<div class="alert alert-primary">
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<h2>Übung 23: Fetch API – Einfache Datenabfrage</h2>
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<p>
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Erstelle eine Funktion <code>fetchUsers</code>, die mithilfe der Fetch API eine Liste von Benutzern von der
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DummyJSON-API abruft. Verwende async/await und try/catch, um Netzwerkfehler abzufangen. Die abgerufenen
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Daten sollen dann in der Konsole ausgegeben werden.
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</p>
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<p>
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<strong>Hinweis:</strong> Verwende die URL
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<a href="https://dummyjson.com/users">https://dummyjson.com/users</a> für den Fetch-Aufruf.
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</p>
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</div>
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<div class="output alert alert-secondary my-3"></div>
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</div>
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</main>
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<script>
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'use strict';
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const outputEl = document.querySelector('.output');
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const fetchUsers = async () => {
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try {
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// Fetch-aufruf an die API
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const response = await fetch('https://dummyjson.com/users');
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// Prüfen ob die OK ist
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if (!response.ok) {
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throw new Error(`HTTP-Fehler: ${response.status}`);
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}
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// JSON-Daten parsen
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const data = await response.json();
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return data;
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return data;
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} catch (error) {
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console.error(error.message);
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}
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};
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// Funktionsaufruf
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fetchUsers().then((data) => {
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console.log(data);
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console.log(data.users.length);
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outputEl.innerHTML = '';
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data.users.forEach((user) => {
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const { firstName, lastName, email } = user;
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console.log(`${firstName} ${lastName} (${email})`);
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outputEl.innerHTML += `${firstName} ${lastName} (${email})<br />`;
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});
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});
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</script>
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</body>
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</html>
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