JavaScript toUpperCase() Method : String Object

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

Description

The toUpperCase() method is used to convert a string to uppercase.

Version

Implemented in JavaScript 1.0

Syntax

toUpperCase()

Parameter

None

Example:

In the following web document toUpperCase() method converts a given string to uppercase.

<!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 - toUpperCase() method example</title>
</head>
<body>
<h1 style="color: red">JavaScript String object : toUpperCase() method</h1>
<hr />
<script type="text/javascript">
//This is done to make the following JavaScript code compatible to XHTML. <![CDATA[
var lwtxt="alphabet"
document.write(lwtxt.toUpperCase())
//]]>
</script>
</body>
</html>

View the example in the browser

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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