MessagePort.postMessage also support passing an options param (#2…

…9282)

Update index.md

files/en-us/web/api/messageport/postmessage/index.md

@@ -17,18 +17,19 @@ transfers ownership of objects to other browsing contexts.
 ## Syntax
 
 ```js-nolint
-postMessage(message, transferList)
+postMessage(message)
+postMessage(message, options)
+postMessage(message, transfer)
 ```
 
 ### Parameters
 
 - `message`
-  - : The message you want to send through the channel. This can be of any basic data
-    type. Multiple data items can be sent as an array.
-- `transferList` {{optional_inline}}
-  - : [Transferable objects](/en-US/docs/Web/API/Web_Workers_API/Transferable_objects) to be transferred — these objects have their
-    ownership transferred to the receiving browsing context, so are no longer usable by
-    the sending browsing context.
+  - : The message you want to send through the channel. This can be of any basic data type. Multiple data items can be sent as an array.
+- `options` {{optional_inline}}
+  - : An optional object containing a `transfer` field with an [array](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) of [transferable objects](/en-US/docs/Web/API/Web_Workers_API/Transferable_objects) to transfer ownership of. The ownership of these objects is given to the destination side and they are no longer usable on the sending side.
+- `transfer` {{optional_inline}}
+  - : An optional [array](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) of [transferable objects](/en-US/docs/Web/API/Web_Workers_API/Transferable_objects) to transfer ownership of. The ownership of these objects is given to the destination side and they are no longer usable on the sending side.
 
 ### Return value