basic-javascript-programs/js10.html at master · AswaniPc/basic-javascript-programs · GitHub

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<!--JavaScript program to convert given string to uppercase and lowercase-->
<!DOCTYPE html>
<html>
<head>
	<title>js10</title>
</head>
<body>
<input type="textbox"  id="ipt">
<br><br>
<input type="button" value="upper" name="upper case" onclick="upper()">
<input type="button" value="lower" name="lower case" onclick="lower()">
<div id="opt"></div>
<script type="text/javascript">
function lower()
{
	var str=document.getElementById("ipt").value;
	document.getElementById("opt").innerHTML=str.toLowerCase();


}
function upper()
{
	var str=document.getElementById("ipt").value;
	document.getElementById("opt").innerHTML=str.toUpperCase();


}
</script>
</body>
</html>