pub fn isdecimal<D: Dimension>(
a: &StringArray<D>,
) -> FerrayResult<Array<bool, D>>Expand description
Return true where every character is a Unicode decimal digit (Nd
general category) and the string is non-empty. Matches
numpy.strings.isdecimal — stricter than isdigit in that
superscripts (e.g. ²) and other “digit” characters that are not
decimal-digit characters return false.