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Microsoft® JScript isNaN Function See Also |
| Language Reference |
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Determines whether a value is the reserved value NaN (not a number).
isNaN( numvalue )
The numvalue argument is the value to be tested against NaN.
The isNaN function returns true if the value is NaN, false otherwise. This function is typically used to test return values from the parseInt and parseFloat functions.
© 1996 by Microsoft Corporation.
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Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232! |
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