var arr = new Array(); arr[0] = 100; arr[1] = 0; arr[2] = 50; Array.prototype.max = function() { return Math.max.apply(null, this) } Array.prototype.min = function() { return Math.min.apply(null, this) } var min = Math.min.apply(null, arr), max = Math.max.apply(null, arr);
To find the Maximum value in Array Use Below
var max_of_array = Math.max.apply(Math, array);