[−][src]Function koyomi::holiday
pub fn holiday(date: &Date) -> Option<String>
指定日が祝祭日にあたるかどうかを判定する
Examples
use koyomi; let date = koyomi::Date::from_ymd(2018, 1, 1).unwrap(); let holiday = koyomi::holiday(&date); assert_eq!(holiday.unwrap(), "元日"); let date = koyomi::Date::from_ymd(2018, 1, 2).unwrap(); let holiday = koyomi::holiday(&date); assert_eq!(holiday, None);