Function enum_iterator::first
source · pub fn first<T: Sequence>() -> Option<T>
Expand description
Returns the first value of type T
.
§Example
use enum_iterator::{first, Sequence};
#[derive(Debug, PartialEq, Sequence)]
enum Day { Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday }
assert_eq!(first::<Day>(), Some(Day::Monday));