doc: fix globalPreload example

Fixes: #50279
nodejs · Oct 20, 2023 · 0b149f6 · 0b149f6
1 parent a0e60c1
commit 0b149f6
Showing 1 changed file with 6 additions and 6 deletions.
diff --git a/doc/api/esm.md b/doc/api/esm.md
@@ -976,14 +976,14 @@ close normally.
  * and sends the message back to the application context
  */
 export function globalPreload({ port }) {
-  port.onmessage = (evt) => {
-    port.postMessage(evt.data);
-  };
+  port.on('message', (msg) => {
+    port.postMessage(msg);
+  });
   return `\
     port.postMessage('console.log("I went to the Loader and back");');
-    port.onmessage = (evt) => {
-      eval(evt.data);
-    };
+    port.on('message', (data) => {
+      eval(data);
+    });
   `;
 }
 ```