postmessage

Control returns immediately from PostMessage and the message gets processed later .

控制会从PostMessage立即返回，该消息是后来才处理的。

This data is then sent back to the parent thread by using the postMessage function .

该数据随后会被通过postMessage函数发送回母线程。

This is invoked when you call postMessage from the main thread .

该函数在您从主线程调用postMessage时调用。

Of course , postMessage is an asynchronous function ; you call it and it immediately returns .

当然，postMessage是一个异步函数；您调用它，它就立即返回。

The data you passed from the page script is passed to the postMessage function in the message object .

从页面脚本传来的数据被传递到message对象中的postMessage函数。

Finally , to initiate the worker , call postMessage with some data for it to work on .

最后，为了初始化这个worker，用一些数据调用postMessage以便它能工作起来。

The object passed in to postMessage becomes the data property on the object passed to the onmessage method .

这样一来，传递给postMessage的这个对象就成为了传递给onmessage方法的那个对象的数据属性。

To send the thread a message , the postMessage method on the Worker instance is invoked .

要向线程发送一个消息，需要调用Worker实例上的postMessage方法。

It uses the onmessage / postMessage paradigm to receive and send data from its parent thread .

它使用onmessage/postMessage范型来从它的母线程接收和发送数据。

So what exactly goes on with this onmessage / postMessage paradigm ?

那么这个onmessage/postMessage范型到底说明了什么？

When you finish processing the data in the Worker script , you invoke the postMessage function to send data back to the main thread .

当您处理完Worker脚本中的数据时，调用postMessage函数将数据返回主线程。

The Window Name protocol is more involved , but it must be used in older browsers that do not support window . postMessage () .

这里涉及到了更多的WindowName协议，但是它必须在并不支持window.postMessage（）的老式浏览器中使用。

Generally , the handler will run its own postMessage () method to return a message to the calling code , and then the port 's start () method generates an enable message process .

通常，这个处理程序会执行自己的postMessage（）方法将消息返回给调用代码，然后port的start（）方法就会生成一个启用消息过程。