rustHow to slice a hashmap in Rust?
Slicing a hashmap in Rust is done using the .iter()
method. This method returns an iterator over the key-value pairs of the hashmap. The iterator can then be used to access the elements of the hashmap.
Example code
let mut my_hashmap = HashMap::new();
my_hashmap.insert("a", 1);
my_hashmap.insert("b", 2);
my_hashmap.insert("c", 3);
for (key, value) in my_hashmap.iter() {
println!("{}: {}", key, value);
}
Output example
a: 1
b: 2
c: 3
Code explanation
let mut my_hashmap = HashMap::new();
: This line creates a new empty hashmap.my_hashmap.insert("a", 1);
: This line inserts a key-value pair into the hashmap.for (key, value) in my_hashmap.iter() {
: This line creates an iterator over the key-value pairs of the hashmap.println!("{}: {}", key, value);
: This line prints out the key-value pairs of the hashmap.
Helpful links
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