<!DOCTYPE html>
<html>
<body>
<p>Click the button to compare two strings in the current locale.</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
var str1 = "cd";
var str2 = "ab";
var n = str1.localeCompare(str2);
document.getElementById("demo").innerHTML = n;
}
</script>
</body>
</html>