Working with hashmaps

Author: unpervertedkid

rustlang_book/collections/hashmaps/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "hashmaps"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

rustlang_book/collections/hashmaps/src/main.rs

@@ -0,0 +1,19 @@
+use std::collections::HashMap;
+
+fn main() {
+    let mut scores = HashMap::new();
+
+
+    scores.insert(String::from("Red"), 10);
+    scores.insert(String::from("Blue"), 50);
+    scores.insert(String::from("Yellow"), 25);
+
+    let team_name = String::from("Red");
+    let score = scores.get(&team_name).copied().unwrap_or(0);
+    println!("{}: {}", team_name, score);
+
+
+    for (team, score ) in &scores {
+        println!("{}: {}", team, score);
+    }
+}