fix: preserve explicitly scoped undefined values

index.js

@@ -16,8 +16,8 @@ export default function createContext(defaultValue) {
 		@returns {unknown} The current context value.
 		*/
     get() {
-      const value = storage.getStore();
-      return value === undefined ? defaultValue : value;
+      const store = storage.getStore();
+      return store === undefined ? defaultValue : store.value;
     },
     /**
 		Run a function with the given value in the async context.
@@ -27,7 +27,7 @@ export default function createContext(defaultValue) {
 		@returns {unknown} The result of function_.
 		*/
     run(value, function_) {
-      return storage.run(value, function_);
+      return storage.run({ value }, function_);
     },
 
     /**
@@ -37,7 +37,7 @@ export default function createContext(defaultValue) {
 		@returns {(...arguments_: unknown[]) => unknown} A function that takes a function and runs it in the context.
 		*/
     runWith(value) {
-      return (function_) => storage.run(value, function_);
+      return (function_) => storage.run({ value }, function_);
     },
   };
 }

readme.md

@@ -10,7 +10,7 @@
   <a href="https://www.npmjs.com/package/context-local"><img src="https://img.shields.io/npm/v/context-local?label=npm" alt="npm"></a>
   <a href="https://deepwiki.com/mstuart/context-local"><img src="https://deepwiki.com/badge.svg" alt="Ask DeepWiki"></a>
   <a href="https://socket.dev/npm/package/context-local"><img src="https://socket.dev/api/badge/npm/package/context-local" alt="Socket"></a>
-  <img src="https://img.shields.io/badge/node-%E2%89%A520-339933.svg" alt="Node 20+">
+  <img src="https://img.shields.io/badge/node-%E2%89%A522-339933.svg" alt="Node 22+">
 </p>
 
 ---

test.js

@@ -151,3 +151,11 @@ test("false as context value", (t) => {
     t.false(context.get());
   });
 });
+
+test("explicit undefined overrides the default value", (t) => {
+  const context = createContext("default");
+  context.run(undefined, () => {
+    t.is(context.get(), undefined);
+  });
+  t.is(context.get(), "default");
+});