rustHow to get an element from a HashSet in Rust?
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
Related
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