ch08

ch8/ch10/or_insert.rs

@@ -0,0 +1,11 @@
+use std::collections::HashMap;
+
+fn main() {
+    let mut scores = HashMap::new();
+    scores.insert(String::from("Blue"), 10);
+
+    scores.entry(String::from("Yellow")).or_insert(50);
+    scores.entry(String::from("Blue")).or_insert(50);
+
+    println!("{scores:?}");
+}