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Result Size: 625 x 571
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<!DOCTYPE html>
<html>
<body>
<p>Click the button to get the sum of the rounded numbers in the array.</p>
<button onclick="myFunction()">Try it</button>
<p>Sum of numbers in array: <span id="demo"></span></p>
<script>
var numbers = [15.5, 2.3, 1.1, 4.7];
function getSum(total, num) {
  return total + Math.round(num);
}
function myFunction(item) {
  document.getElementById("demo").innerHTML = numbers.reduce(getSum, 0);
}
</script>
</body>
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_reduce2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:01:27 GMT -->
</html>
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