postmessage

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。

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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。

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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。

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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。

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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。

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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。

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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。

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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。

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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？

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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Window Name协议，但是它必须在并不支持window.postMessage（）的老式浏览器中使用。

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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。

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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。

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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。

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