Function numberkit::as_u8d

pub fn as_u8d<S>(text: S, def: u8) -> u8 where
    S: AsRef<OsStr>, 

covert string to u8 with default, will check covert error, if error use default value.

Example

assert_eq!(1 as u8, numberkit::as_u8d("a", 1 as u8));