Write a JavaScript program to find minimum and maximum element in array.
<html>
<head>
<title>Display minimum and maximum element in Array</title>
</head>
<body>
<p id="result"></p>
<script>
var arr = [54, 21, 74, 31, 12];
var max = arr[0];
var min = arr[0];
document.write("Array elements given are: " + arr + "<br/>");
for(var i=1; i<arr.length; i++) {
if(arr[i] > max)
max = arr[i];
if(arr[i] < min)
min = arr[i];
}
document.write("<h3>Minimum element is " + min + "</h3>");
document.write("<h3>Maximum element is " + max + "</h3>");
</script>
</body>
</html>
