Trait Insert 

pub trait Insert<K, V> {
    // Required method
    fn insert(&mut self, key: K, value: V) -> Option<V>;
}

A trait which provides a method to insert a key and value into a map

Required Methods

fn insert(&mut self, key: K, value: V) -> Option<V>

Insert a key and value into the map

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<K: Eq + Hash, V> Insert<K, V> for HashMap<K, V>

fn insert(&mut self, key: K, value: V) -> Option<V>

impl<K: Eq + Hash, V> Insert<K, V> for IndexMap<K, V>

fn insert(&mut self, key: K, value: V) -> Option<V>

Implementors