Match simple-shared-worker/multiply.js to use same event-handler loop as simple-web-worker/main.js (#284)

* Match `simple-shared-worker/multiply.js` to use same event-handler loop logic as `simple-web-worker/main.js`

* `myWorker.postMessage` => `myWorker.port.postMessage`

* Update web-workers/simple-shared-worker/multiply.js

* Update web-workers/simple-shared-worker/multiply.js

---------

Co-authored-by: Brian Smith <[email protected]>

Author: Marcial1234

web-workers/simple-shared-worker/multiply.js

@@ -6,17 +6,14 @@ const result1 = document.querySelector(".result1");
 if (!!window.SharedWorker) {
   const myWorker = new SharedWorker("worker.js");
 
-  first.onchange = function () {
-    myWorker.port.postMessage([first.value, second.value]);
-    console.log("Message posted to worker");
-  };
-
-  second.onchange = function () {
-    myWorker.port.postMessage([first.value, second.value]);
-    console.log("Message posted to worker");
-  };
+  [first, second].forEach(input => {
+    input.onchange = () => {
+      myWorker.port.postMessage([first.value, second.value]);
+      console.log('Message posted to worker');
+    }
+  })
 
-  myWorker.port.onmessage = function (e) {
+  myWorker.port.onmessage = (e) => {
     result1.textContent = e.data;
     console.log("Message received from worker");
     console.log(e.lastEventId);