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28 lines
542 B
HTML
28 lines
542 B
HTML
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<!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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<p id="start">
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<b class="a">This a class.</b>
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<b class="b">This b class.</b>
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</p>
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<script>
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function myFunction() {
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var el = document.getElementById('start');
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var x = el.querySelectorAll('.nonexistent');
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console.assert(x.length === 0, 'nonexistent element');
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var y = el.querySelectorAll('.b');
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console.assert(y.length === 1, 'b class b.');
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}
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console.error('element.querySelectorAll.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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