Operator Precedence in javascript

<!DOCTYPE html>
<html>
<body>

<h4> Operator Precedence In Javascript.</h4>

<script>
let x = 10;
let y = 5;
let z = 3;

document.write( x + y * z );
/*Result is 25  [ 3 * 5 = 15 + 10 ]*/
document.write("<br>");
document.write( (x + y) * z );
/*Result is 25  [ 10 + 5 = 15 * 10 ]*/
</script>

</body>
</html>