Javascript math.max bug in AE cs5

Question

Sombody please explain to me why the following script:
var test = 0;
test = Math.max (8,26,22);
alert (test);
outputs "22" in after effects CS5.
am i just missing something really simple or is this a bug?
the same code in a browser works fine.

Answer 1

Yes, but it doesn't work in CS5.
I noticed that in CS5 the result of the Math.max function depends on the order of the arguments as well as their values, but I always only use it with 2 arguments so I never really cared.
It looks like each value is compared to the first one, and the value returned is the last argument found that is greater than the first one.
So Math.max(1.5, 4, 3, 2, 1) will return 2 because the arguments following are lower than 1.5
So Math.max(2.5, 4, 3, 2, 1) will return 3 because the arguments following are lower than 2.5
and Math.max(2.5, 3, 4, 2, 1) will return 4 because the arguments following are lower than 2.5
So it's safer to do what Dan suggested and break the max calculations with a loop. something like:
var values = [ ... an array of values ... ];
var maxValue = values[0];
for (var i=1; i<values.length; i++)
    maxValue = Math.max(maxValue, values[i]);