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isFinite() Method
This method determines whether its parameter is a finite number. Syntax
isFinite(value)
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value |
The variable or expression to be evaluated |
Returns
True if value is or can be converted to a number; false if value evaluates to NaN, POSITIVE_INFINITY, or NEGATIVE_INFINITY. Usage
The isFinite() method returns true if number is or can be converted to a number. If the parameter evaluates to NaN, number.POSITIVE_INFINITY, or number.NEGATIVE_INFINITY, the method returns false. For details on the number object, see NaN. See Also
isNaN() Method
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