toUpperCase() and toLowerCase() methods in JS

toUpperCase() and toLowerCase() methods in JS 



<!DOCTYPE html>
<html>
<head>
<title>Test page for positions</title>
<script type="text/javascript">

var str= "HELLO WORLD!!";

var b= str.toLowerCase();

console.log(b);

var c =str.toUpperCase();

console.log(c);

</script>

</head>
<body>

</body>
</html>



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