JavaScript sub() Method: String Object

Last update on August 19 2022 21:51:08 (UTC/GMT +8 hours)

Description

The sub() method is used to display a string as a subscript, as if it were in a <sub> tag.

Version

Implemented in JavaScript 1.0

Syntax

sub()

Parameter

None

Example:

In the following web document sub() method displays a given string as a subscript. The method produces same output as html : <sub>2</sub>.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
<title>JavaScript String object - sub() method example</title>
</head>
<body>
<h1 style="color: red">JavaScript String object : sub() method</h1>
<hr />
<script type="text/javascript">
//This is done to make the following JavaScript code compatible to XHTML. <![CDATA[
var subText="2"
document.write("<P>This is what a Subscript H" + subText.sub() + "O looks like.")
//]]>
</script>
</body>
</html>

View the example in the browser

Pictorial presentation: Output and Page source

Supported Browser

Internet Explorer 7	Firefox 3.6	Google Chrome 7	Safari 5.0.1	Opera 10
Yes	Yes	Yes	Yes	Yes

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