how-to-get-an-element-from-a-hashset-in-rust.md

How to get an element from a HashSet in Rust?

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To get an element from a HashSet in Rust, you can use the get method. This method takes a reference to the element you want to get and returns an Option<&T> where T is the type of the elements in the HashSet.

Example

use std::collections::HashSet;

let mut set = HashSet::new();
set.insert(1);
set.insert(2);

let result = set.get(&1);
println!("{:?}", result);

Output example

Some(&1)

The get method takes a reference to the element you want to get and returns an Option<&T> where T is the type of the elements in the HashSet. If the element is found, the method returns Some(&T), otherwise it returns None.

Helpful links

• HashSet documentation

group: hashset

onelinerhub: How to get an element from a HashSet in Rust?