Update Multithreading example to support transferable objects

Author: kateinoigakukun

Diff for: Examples/Multithreading/Sources/JavaScript/index.js

@@ -27,9 +27,9 @@ class ThreadRegistry {
     };
   }
 
-  postMessageToWorkerThread(tid, data) {
+  postMessageToWorkerThread(tid, data, transfer) {
     const worker = this.workers.get(tid);
-    worker.postMessage(data);
+    worker.postMessage(data, transfer);
   }
 
   terminateWorkerThread(tid) {

Diff for: Examples/Multithreading/Sources/JavaScript/worker.js

@@ -5,9 +5,9 @@ self.onmessage = async (event) => {
   const { instance, wasi, swiftRuntime } = await instantiate({
     module,
     threadChannel: {
-      postMessageToMainThread: (message) => {
+      postMessageToMainThread: (message, transfer) => {
         // Send the job to the main thread
-        postMessage(message);
+        postMessage(message, transfer);
       },
       listenMessageFromMainThread: (listener) => {
         self.onmessage = (event) => listener(event.data);