isAlpha
Syntax
isAlpha(X)
Arguments
X is a STRING scalar or vector.
Details
Return "true" if all characters in the string are alphabets. For STRING type NULLs, return "false".
Examples
isAlpha("hello");
// output
true
isAlpha("hello world");
// output
false
isAlpha("1And1");
// output
false
isAlpha(string());
// output
false