rustHow to create a HashMap of traits in Rust?
A HashMap is a data structure in Rust that stores key-value pairs. It is a collection of unique keys and their associated values. To create a HashMap of traits, you can use the HashMap::new()
method.
use std::collections::HashMap;
let mut traits = HashMap::new();
traits.insert("strength", 10);
traits.insert("intelligence", 8);
traits.insert("charisma", 5);
The output of the example code is:
()
Code explanation
-
use std::collections::HashMap;
- This imports the HashMap module from the standard library. -
let mut traits = HashMap::new();
- This creates a new, empty HashMap calledtraits
. -
traits.insert("strength", 10);
- This inserts a key-value pair into the HashMap, with the key being "strength" and the value being 10. -
traits.insert("intelligence", 8);
- This inserts a key-value pair into the HashMap, with the key being "intelligence" and the value being 8. -
traits.insert("charisma", 5);
- This inserts a key-value pair into the HashMap, with the key being "charisma" and the value being 5.
Helpful links
Related
- How to convert the keys of a Rust HashMap to a vector?
- How to convert a Rust HashMap to a JSON string?
- How to convert a Rust HashMap to JSON?
- How to convert a Rust HashMap to a struct?
- How to use a custom hash function with a Rust HashMap?
- How to clone a Rust HashMap?
- How to build a Rust HashMap from an iterator?
- How to use a custom hasher with a Rust HashMap?
- How to use an enum in a Rust HashMap?
- How to compare two Rust HashMaps?
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See more codes...