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[assert] element.querySelector

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This commit is contained in:
Witold Filipczyk 2024-05-05 19:22:44 +02:00
parent cc718c30b5
commit 3128c22c2e
1 changed files with 31 additions and 0 deletions
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test/ecmascript/assert/element.querySelector.html Normal file
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<!DOCTYPE html>
<html>
<body>
<p class="a">Class a.</p>
<p class="b">Class b.</p>
<p id="start">
<b class="a">This a class.</b>
<b class="b">This b class.</b>
</p>
<script>
function myFunction() {
var el = document.getElementById('start');
console.assert(!(el === null), 'start exists');
var x = el.querySelector('.nonexistent');
console.assert(x === null, 'nonexistent element');
var y = el.querySelector('.b');
console.assert(!(y === null), 'Class b');
var inp = y.innerHTML;
console.assert(inp === 'This b class.', 'Class b.');
}
console.error('element.querySelector.html');
myFunction();
console.exit(0);
</script>
</body>
</html>