JavaScript
Comments
·
Comments will not be executed by JavaScript.
·
Which is useful for the programmers for more readable
Types of Comments: 2 types
1. Single
line comments
2. Multiline
comments
Single line comments start with //.
The following example uses single line
comments to explain the code:
<!DOCTYPE html>
<html>
<body>
<h1 id="myH1"></h1>
<p id="myP"></p>
<script>
// Write to a heading:
document.getElementById("myH1").innerHTML="Welcome to my Homepage";
// Write to a paragraph:
document.getElementById("myP").innerHTML="This is my first paragraph.";
</script>
<p><strong>Note:</strong> The comments are not executed.</p>
</body>
</html>
/*multiline comments*/
<!DOCTYPE html>
<html>
<body>
<h1 id="myH1"></h1>
<p id="myP"></p>
<script>
/*
The code below will write
to a heading and to a paragraph,
and will represent the start of
my homepage:
*/
document.getElementById("myH1").innerHTML="Welcome to my Homepage";
document.getElementById("myP").innerHTML="This is my first paragraph.";
</script>
<p><strong>Note:</strong> The comment-block is not executed.</p>
</body>
</html>
<html>
<body>
<h1 id="myH1"></h1>
<p id="myP"></p>
<script>
/*
The code below will write
to a heading and to a paragraph,
and will represent the start of
my homepage:
*/
document.getElementById("myH1").innerHTML="Welcome to my Homepage";
document.getElementById("myP").innerHTML="This is my first paragraph.";
</script>
<p><strong>Note:</strong> The comment-block is not executed.</p>
</body>
</html>
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