August 2006
Intermediate to advanced
1018 pages
34h 13m
English
isFinite( ): determine whether a number is finite — ECMAScript v1
isFinite(n)
n
The number to be tested.
true if
n is (or can be converted to) a finite
number, or false if
n is NaN (not a number) or positive or
negative infinity.
Infinity, isNaN( ), NaN, Number.NaN, Number.NEGATIVE_INFINITY, Number.POSITIVE_INFINITY
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