Function numberkit::as_u64d

pub fn as_u64d<S>(text: S, def: u64) -> u64 where
    S: AsRef<OsStr>, 

covert string to u64 with default, will check covert error, if error use default value.

Example

assert_eq!(1 as u64, numberkit::as_u64d("a", 1 as u64));