codeLetterSet property

OtpCodeLetterSet? codeLetterSet

Which characters are accepted by the field. null means "not specified" — see OtpCodeLetterSet for the available alphabets and the "Defaults & inference" section in the class doc.

Some letter sets combine with codeType to add digits (aToZ, unicodeLetters, custom). Others are complete alphabets and constrain codeType (binary, crockford, hexadecimal, base62).

Implementation

final OtpCodeLetterSet? codeLetterSet;