ESLSTR Function
Determine whether the characters in a string are digits.
IsDigitFunction(STRING_SV)
STRING_SV
The string whose characters you want examined.
Description
Use this function to determine whether all the characters in STRING_SV are digits between 0 and 9.
The function returns the boolean value true (1) if they are and false (0) if not.
See Also
IsDigit( ) Subroutine