Syntax:
<object_parameter> isalpha
Return:
Boolean. Returns true if all characters in
<object_parameter> are letters from a-z or A-Z, otherwise false.
Parameter <object_parameter>:
String to be checked. Required parameter; type is string; parameter name omitted.
Example:
Check if "abc" consists entirely of
letters.
NLC snippet: "abc" isalpha // result is true
Example:
Check if "abc1" consists entirely of
letters.
NLC snippet: "abc#" isalpha // result is false.