- From: Anne van Kesteren <annevk@annevk.nl>
- Date: Fri, 29 Mar 2013 08:23:42 +0000
- To: Jake Verbaten <raynos2@gmail.com>
- Cc: "Tab Atkins Jr." <jackalmage@gmail.com>, "www-dom@w3.org" <www-dom@w3.org>
On Thu, Mar 28, 2013 at 10:06 PM, Jake Verbaten <raynos2@gmail.com> wrote: > What are the semantics for the IO a Future does? > > Does it start doing an asynchronous operation immediately? > Does it start doing an asynchronous operation once then or accept or done is > called? This is up to the implementation. In theory the operation could already be running or have been completed once you construct a future. Often I would expect it to start once you construct one, but the nice thing is that the feature allows implementations to optimize that in a non-observable way. > Is a future a lazy representation of the asynchronous result? > Or is it simply an object on which you can put glorified event listeners for > success & failure? Reading https://github.com/slightlyoff/DOMFuture/blob/master/README.md might help. -- http://annevankesteren.nl/
Received on Friday, 29 March 2013 08:24:09 UTC