%dw 2.0
import isAlpha from dw::core::Strings
output application/json
---
{
"a": isAlpha(null),
"b": isAlpha(""),
"c": isAlpha(" "),
"d": isAlpha("abc"),
"e": isAlpha("ab2c"),
"f": isAlpha("ab-c")
}
isAlpha
isAlpha(text: String): Boolean
Checks if the text
contains only Unicode digits. This excludes digits, punctuation, and other nonletter characters.
Note that the method does not allow for a leading sign, either positive or negative.
Introduced in DataWeave version 2.2.0.