The JavaScript string toUpperCase() method transforms the given string into the uppercase letter.
Syntax:
string.toUpperCase()
string.toUpperCase()
string.toUpperCase()
Return:
String with upper case letters.
Example:
<!DOCTYPE html>
<html>
<body>
<script>
var a ="Hello World!";
document.write(a.toUpperCase());
</script>
</body>
</html>
<!DOCTYPE html>
<html>
<body>
<script>
var a ="Hello World!";
document.write(a.toUpperCase());
</script>
</body>
</html>
<!DOCTYPE html> <html> <body> <script> var a ="Hello World!"; document.write(a.toUpperCase()); </script> </body> </html>