<!DOCTYPE html>
<html>
<body>
<script id="myScript" src="demo_script_charset.js" charset="UTF-8"></script>
<p>Click the button to return the value of the charset attribute of the script.</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
var x = document.getElementById("myScript").charset;
document.getElementById("demo").innerHTML = x;
}
</script>
</body>
</html>