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25 lines
486 B
HTML
25 lines
486 B
HTML
<!DOCTYPE html>
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<html>
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<body>
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<p class="a">Class a.</p>
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<p class="b">Class b.</p>
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<script>
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function myFunction() {
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var x = document.querySelector('.nonexistent');
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console.assert(x === null, 'nonexistent element');
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var y = document.querySelector('.b');
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console.assert(!(y === null), 'Class b');
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var inp = y.innerHTML;
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console.assert(inp === 'Class b.', 'Class b.');
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}
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console.error('document.querySelector.html');
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myFunction();
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console.exit(0);
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</script>
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</body>
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</html>
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