var obj = {a: 1, b: 2, undefined: 1};
Object.keys(obj).reduce((a, b) => obj[a] > obj[b] ? a : b);Math.max.apply(Math, array.map(function(o) { return o.y; }))Math.max(...arr.map(({ value }) => value));Math.max.apply(Math, array.map(function(o) { return o.y; }))
<!DOCTYPE html>
<html>
<body>
<p>By using Math.max.apply method we can find out the maximum array value</p>
<p>The maximum aray value is:</p>
<p id="pId"></p>
<script>
var marks = [40, 95, 70, 45, 75, 55];
document.getElementById("pId").innerHTML = maximumArayValue(marks);
function maximumArayValue(array) {
return Math.max.apply(null, array);
}
</script>
</body>
</html>