pub trait GroupBy: Iterator {
// Required method
fn group_by<T: Hash + Eq, U: Fn(&Self::Item) -> T>(
self,
get_key: U,
) -> HashMap<T, Vec<Self::Item>>;
}Required Methods§
fn group_by<T: Hash + Eq, U: Fn(&Self::Item) -> T>( self, get_key: U, ) -> HashMap<T, Vec<Self::Item>>
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.