diff --git a/CHANGELOG.md b/CHANGELOG.md
index edb8fcac..30774372 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ Unreleased
   a given `RoomXY` position
 - Add static function `LocalCostMatrix::new_with_value` which returns a `LocalCostMatrix` with
   every position set to a given `u8` value
+- Implement `JsCollectionIntoValue` and `JsCollectionFromValue` for `IntershardResourceType` and
+  `u32` to allow `game::resources()` return value to be used as expected
 
 0.21.0 (2024-05-14)
 ===================
diff --git a/src/constants/types.rs b/src/constants/types.rs
index 9782f2e7..934a5e7b 100644
--- a/src/constants/types.rs
+++ b/src/constants/types.rs
@@ -199,6 +199,18 @@ pub enum IntershardResourceType {
 
 named_enum_serialize_deserialize!(IntershardResourceType);
 
+impl JsCollectionIntoValue for IntershardResourceType {
+    fn into_value(self) -> JsValue {
+        self.into()
+    }
+}
+
+impl JsCollectionFromValue for IntershardResourceType {
+    fn from_value(v: JsValue) -> IntershardResourceType {
+        IntershardResourceType::from_js_value(&v).expect("valid intershard resource type string")
+    }
+}
+
 /// Translates the values of the `RESOURCES_ALL` constant, representing all
 /// possible in-game (non-intershard) resources.
 #[wasm_bindgen]
diff --git a/src/js_collections.rs b/src/js_collections.rs
index c1d5ecab..37c1a514 100644
--- a/src/js_collections.rs
+++ b/src/js_collections.rs
@@ -320,6 +320,22 @@ impl JsCollectionFromValue for u8 {
     }
 }
 
+impl JsCollectionIntoValue for u32 {
+    fn into_value(self) -> JsValue {
+        JsValue::from_f64(self as f64)
+    }
+}
+
+impl JsCollectionFromValue for u32 {
+    fn from_value(val: JsValue) -> u32 {
+        if let Some(val) = val.as_string() {
+            val.parse::<u32>().expect("expected parseable u32 string")
+        } else {
+            val.as_f64().expect("expected number value") as u32
+        }
+    }
+}
+
 impl<K, V> JsCollectionFromValue for (K, V)
 where
     K: JsCollectionFromValue,