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[assert] element.setAttribute

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This commit is contained in:
Witold Filipczyk 2024-04-28 16:13:54 +02:00
parent 960586056c
commit 7f087ee615
1 changed files with 32 additions and 0 deletions
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test/ecmascript/assert/element.setAttribute.html Normal file
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<!DOCTYPE html>
<html>
<head>
<style>
.democlass {
color: red;
}
</style>
</head>
<body>
<h1>Hello World</h1>
<p>Click the button to add a class attribute with the value of "democlass" to the h1 element.</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction() {
var before = document.getElementsByTagName("H1")[0].outerHTML;
console.assert(before === '<H1>Hello World</H1>', 'H1');
document.getElementsByTagName("H1")[0].setAttribute("class", "democlass");
var after = document.getElementsByTagName("H1")[0].outerHTML;
console.assert(after === '<H1 class="democlass">Hello World</H1>', 'H1 with class');
}
console.error("element.setAttribute.html");
myFunction();
console.exit(0);
</script>
</body>
</html>