JavaScript Comments
JavaScript Comments
Single line comments start with //.
Any text between // and the end of a line, will be ignored by JavaScript (will not be executed).
This example uses a single line comment before each line, to explain the code:
<!DOCTYPE html>
<html>
<body>
<h1 id="myH"></h1>
<p id="myP"></p>
<script>
// Change heading:
document.getElementById("myH").innerHTML = "My First Page";
// Change paragraph:
document.getElementById("myP").innerHTML = "My first paragraph.";
</script>
<p><strong>Note:</strong> The comments are not executed.</p>
</body>
</html>
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