rustHow to iterate hashset in Rust

Iterating over a HashSet in Rust can be done using the iter() method. This method returns an iterator over the elements of the set.

Example code

let mut set = HashSet::new();
set.insert("foo");
set.insert("bar");

for item in set.iter() {
    println!("{}", item);
}

Output example

foo
bar

Code explanation

• let mut set = HashSet::new();: creates a new empty HashSet
• set.insert("foo");: inserts the string "foo" into the HashSet
• set.insert("bar");: inserts the string "bar" into the HashSet
• for item in set.iter() {: starts an iterator over the elements of the HashSet
• println!("{}", item);: prints the current element of the HashSet
• }: ends the iterator

Helpful links

• HashSet documentation
• Iterator documentation

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