Xbasic
ISDIGIT Function
Syntax
Result_Flag as L = ISDIGIT(C character)
Arguments
- character
A character string.
Description
Returns TRUE if the first character of a string is a digit.
Discussion
ISDIGIT() returns .T. (TRUE) if the first character of Character_String is a number; otherwise, it returns .F. (FALSE).
Example
? isdigit("Alpha")
= .F.
? isdigit("1Alpha")
= .T.See Also