Webmaster Forum / HTML, CSS, Scripts / JavaScript / August 2007

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FAQ Topic - How do I generate a random integer from 1 to
N?
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Method Math.random() returns a value R such that 0 <= R < 1.0 ; therefore

function Random(x) { return Math.floor(x*Math.random()) }

gives a random integer in the range from 0 to x-1 inclusive; use
` Random(N)+1 ` for 1 to N.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/a
28c5c66-c42f-4082-9b71-9a5ee4652cd7.asp

http://docs.sun.com/source/816-6408-10/math.htm

How to Deal and Shuffle, See In:

http://www.merlyn.demon.co.uk/js-randm.htm

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