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differentiate float and integer

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Apr 11.2007

I have wrote a factorial to check where is the argument point that firefox convert an integer to floating pointer. It is 21!->22!.
Value of n is:21 51090942171709440000
Value of n is:22 1.1240007277776077e+21

Does javascript support any method that differentiates them?

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JavaScript

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@BeanisApr 12.2007 — You could convert the result to a string and then test for the existence of a decimal point.
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@letdoitauthorApr 12.2007 — Thanks a lot.

I have another question too. From my code

171! inf (first infinitive)

999! inf (last infinitive and 1xxx! in IE)

When i try to pass 1000!, firefox does not print out any number. How can I terminate last infinitive number dynamically in my code (in firefox 999! and 1xxx! in IE = one code checking for both)

for loop 1->1100

IE will stop at 1xxx!

Firefox will stop at 999!
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