<!DOCTYPE html>
<html>
<body>
<h2>Common JavaScript Mistakes</h2>
<p>This example will return a correct result:</p>
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = myFunction(55);
function myFunction(a) {
let
power = 10;
return a * power;
}
</script>
</body>
</html>
