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Javascript Math.Max Problem - Returning NaN

Posted on 2011-03-22
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Last Modified: 2012-05-11
While looping through some XML using JQuery I am constructing a grouping of numbers.   From those numbers I am trying to acquire which of the numbers is the largest.  For some reason, it is returning NaN when I use the Math.max function.  Each number is no larger than 6 digits at most.

JQuery Loop to Construct Grouping
var snewmileagegroup = 0;
$(this).find('XMLChild').each(function(){
	snewmileagegroup = snewmileagegroup + ',' + parseFloat($(this).find('Mileage').text());
});

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Result: 0,36000,48000,65000

Now I taking the resulting variable and apply the Math.max function to it expecting the return of 65,000.  Problem is that I am getting NaN returned back instead.
var nmg = Math.max(snewmileagegroup);
alert(nmg);

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My suspicion is that I am not creating the collection of numbers correctly by concatenating ','.  Any help will be greatly appreciated.
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Question by:joshaxton
  • 2
3 Comments
 
LVL 9

Expert Comment

by:jkofte
ID: 35190735
I don't know if you can send any collection to the max function.

can you try by sending them seperately like max(a,b,c)
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Accepted Solution

by:
joshaxton earned 0 total points
ID: 35190783
I should have waited to post this as I solved the problem.  Instead of creating a grouping I created an array of numbers.  So the code looks like this now.

var snewmileagegroup = new Array();
var i = 0;
$(this).find('XMLChild').each(function(){
	snewmileagegroup[i] = parseFloat($(this).find('Mileage').text());
        i=i+1;
});

var nmg = Math.max.apply(Math, snewmileagegroup);
alert(nmg);

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0
 

Author Closing Comment

by:joshaxton
ID: 35225352
I figured out the solution on my own and therefore I am posting the solution.
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