rustHow to initialize a Rust HashMap?
A Rust HashMap is a collection of key-value pairs that use a hash table for storage. It is one of the most commonly used data structures in Rust.
To initialize a Rust HashMap, you can use the HashMap::new()
method. This will create an empty HashMap with the default hasher.
use std::collections::HashMap;
let mut map = HashMap::new();
The code above creates an empty HashMap with the default hasher.
use std::collections::HashMap;
: This imports theHashMap
type from thestd::collections
module.let mut map = HashMap::new();
: This creates a mutableHashMap
instance and assigns it to themap
variable.
Helpful links
Related
- How to clone a Rust HashMap?
- How to convert the keys of a Rust HashMap to a vector?
- How to use a custom hash function with a Rust HashMap?
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- How to convert a Rust HashMap to a JSON string?
- How to compare two Rust HashMaps?
- How to clear a Rust HashMap?
- How to get a reference to a key in a Rust HashMap?
- How to get all values from a Rust HashMap?
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