# Digit - `v::digit()` This is similar to `v::alnum()`, but it doesn't allow a-Z. *** See also: * [Alnum](Alnum.md) * [Alpha](Alpha.md) * [Consonant](Consonant.md) * [Factor](Factor.md) * [Finite](Finite.md) * [Infinite](Infinite.md) * [IntType](IntType.md) * [IntVal](IntVal.md) * [Numeric](Numeric.md) * [Regex](Regex.md) * [Vowel](Vowel.md) * [Xdigit](Xdigit.md)