Difference between revisions of "ISDIGIT()"

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==Purpose==
 
==Purpose==
 
Function to check to see if the first character in a given character expression is a digit
 
Function to check to see if the first character in a given character expression is a digit
 
  
 
==Syntax==
 
==Syntax==
 
ISDIGIT(<expC>)
 
ISDIGIT(<expC>)
 
  
 
==See Also==
 
==See Also==
 
[[ISALPHA()]], [[ISLOWER()]], [[ISUPPER()]]
 
[[ISALPHA()]], [[ISLOWER()]], [[ISUPPER()]]
 
  
 
==Description==
 
==Description==
 
The ISDIGIT() function will return .T. if the first character of the given character expression is a value within the range of 0 to 9, and .F. otherwise.
 
The ISDIGIT() function will return .T. if the first character of the given character expression is a value within the range of 0 to 9, and .F. otherwise.
 
  
 
==Example==
 
==Example==
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.F.
 
.F.
 
</code>
 
</code>
 
  
 
==Products==
 
==Products==

Revision as of 12:52, 11 December 2012

Purpose

Function to check to see if the first character in a given character expression is a digit

Syntax

ISDIGIT(<expC>)

See Also

ISALPHA(), ISLOWER(), ISUPPER()

Description

The ISDIGIT() function will return .T. if the first character of the given character expression is a value within the range of 0 to 9, and .F. otherwise.

Example

? isdigit("9 Belmont Ave")
.T.
? isdigit("Nine Belmont Ave")
.F.

Products

Lianja, Lianja Server