JavaScript tutorial-String object toLowerCase | toUpperCase


JavaScript String object: toLowerCase | toUpperCase

The toLowerCase() allows you to convert a string to a new string that contains all lower case letters. In contrast, the toUpperCase() converts a string to a new string containing all upper case letters.

Example:
<html>
<head>
<title>Using toLowerCase() and toUpperCase() methods</title>

<script language="JavaScript" type="text/javascript">

var Mystr="I like JavaScript.";
var str1=Mystr.toLowerCase();
var str2=Mystr.toUpperCase();
document.write(str1+"<br>");
document.write(str2+"<br>");

</script>

</head>
<body>
</body>
</html>




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