由于JavaScript是单线程的，HTML5中的Web工作者如何进行多线程处理？ [英] Since JavaScript is single-threaded, how are web workers in HTML5 doing multi-threading?

问题描述

我一直在阅读HTML5中的网络工作者，但我知道JavaScript是单线程的。

我的问题是：

web工作人员如何进行多线程工作？或者如果它不是真正的多线程，他们如何模拟它？在这里看起来并不清楚。

解决方案

正如几位评论已经指出的那样，工作者确实是多线程的。 / b>

有些问题可能有助于澄清您的想法：

• JavaScript是一种语言，它没有定义线程模型，它不一定是单线程的。大多数浏览器历来都是单线程的（尽管这种情况正在迅速变化：IE ， Chrome ， Firefox ）和大多数JavaScript实现发生在浏览器中


• Web工作人员不是JavaScript的一部分，他们是一个浏览器功能，可以通过JavaScript访问

I've been reading about web workers in HTML5, but I know JavaScript is single-threaded.

My question is:

How are web workers doing multi-threaded work then? or how are they simulating it if it's not truely multi-threaded? Doesn't seem clear to me here.

解决方案

As several comments have already pointed out, Workers really are multi-threaded.

Some points which may help clarify your thinking:

• JavaScript is a language, it doesn't define a threading model, it's not necessarily single threaded
• Most browsers have historically been single threaded (though that is changing rapidly: IE, Chrome, Firefox), and most JavaScript implementations occur in browsers
• Web Workers are not part of JavaScript, they are a browser feature which can be accessed through JavaScript

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