isAlpha

isAlpha(string) → boolean · String

Returns true if the string contains only alphabetic characters (A-Z, a-z, Unicode letters).

• string (required): string to test

echo '{"name": "Alice"}' | utlx -e 'isAlpha($input.name)'
# true

{
  validName: isAlpha($input.firstName),
  hasSpecialChars: !isAlpha($input.input)
}