Determines whether the leftmost character in a character expression is alphabetic.
ISALPHA(cExpression) |
Parameters
- cExpression
- Specifies the character expression that ISALPHA(В ) evaluates. Any characters after the first character in cExpression are ignored.
Return Value
Logical
Remarks
ISALPHA(В ) returns true (.T.) if the leftmost character in the specified character expression is an alphabetic character; otherwise ISALPHA(В ) returns false (.F.).
Example
В | Copy Code |
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CLOSE DATABASES OPEN DATABASE (HOME(2) + 'Data\testdata') USE Customer && Open customer table CLEAR DISPLAY contact ? ISALPHA(contact) && Displays .T. DISPLAY maxordamt ? ISALPHA(cust_id) && Displays .F. |