103 lines
2.8 KiB
HTML
103 lines
2.8 KiB
HTML
<!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 14: Also, was sind das denn nur für Ausdrücke?</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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<h1>Übung 14: Also, was sind das denn nur für Ausdrücke?</h1>
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<!-- Übung 14 -->
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<table class="table table-striped my-5">
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<thead class="table-dark">
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<tr>
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<th>Ausdruck</th>
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<th>Rückgabewert</th>
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<th>Datentyp</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>'1.5' * 2</td>
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<td>3</td>
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<td>number</td>
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</tr>
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<tr>
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<td>'1,5' * 2</td>
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<td>NaN</td>
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<td>number</td>
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</tr>
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<tr>
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<td>'1.5' + 2</td>
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<td>'1.52'</td>
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<td>string</td>
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</tr>
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<tr>
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<td>Number('1.5') * 2</td>
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<td>3</td>
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<td>number</td>
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</tr>
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<tr>
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<td>Number('1,5') * 2</td>
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<td>NaN</td>
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<td>number</td>
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</tr>
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<tr>
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<td>Number('3 Tage') * 7</td>
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<td>NaN</td>
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<td>number</td>
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</tr>
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<tr>
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<td>Number('Seite 20') + 5</td>
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<td>NaN</td>
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<td>number</td>
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</tr>
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<tr>
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<td>'9,2' + Number('11.7')</td>
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<td>'9,211.7'</td>
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<td>string</td>
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</tr>
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<tr>
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<td>(NaN - 2) * (4 / 2)</td>
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<td>NaN</td>
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<td>number</td>
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</tr>
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<tr>
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<td>alert(Number(17 / 2 + 1.3))</td>
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<td>undefined</td>
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<td>'undefined'</td>
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</tr>
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<tr>
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<td>console.log(Number(17 / 2 + 1.3))</td>
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<td>undefined</td>
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<td>'undefined'</td>
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</tr>
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<tr>
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<td>typeof 12.25</td>
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<td>'number'</td>
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<td>string</td>
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</tr>
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<tr>
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<td>typeof typeof 12.25</td>
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<td>'string'</td>
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<td>string</td>
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</tr>
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</tbody>
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</table>
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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 result = alert('hello');
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// const result2 = console.log('Ergebnis: ', result);
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// console.log(result, result2);
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</script>
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</body>
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</html>
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