May 1995
Beginner
508 pages
16h 14m
English
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Name
IsNumeric Function
Syntax
IsNumeric(expression)-
expression Use: Required
Data Subtype: Any numeric or string expression
A numeric or string expression.
Return Value
Boolean (True or False).
Description
Determines whether expression can be
evaluated as a number.
Rules at a Glance
If the expression passed to IsNumeric evaluates
to a number, True is returned; otherwise,
IsNumeric returns False.
Programming Tips & Gotchas
If
expressionis a date or time,IsNumericevaluates toFalse.If
expressionis a currency value, including a string that includes the currency symbol defined by the Control Panel’s Regional Settings applet,IsNumericevaluates toTrue.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.