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Re: A JavaScript setTimeout() even canNOT interrupt a currently executing setTomeout() event!

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From	Richard Maher <maher_rjSPAMLESS@hotmail.com>
Newsgroups	comp.lang.javascript, comp.lang.java.programmer
Subject	Re: A JavaScript setTimeout() even canNOT interrupt a currently executing setTomeout() event!
Date	Thu, 16 May 2013 19:02:41 +0800
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On 5/16/2013 6:01 AM, Evertjan. wrote:
> Richard Maher wrote on 15 mei 2013 in comp.lang.javascript:
>
>> A JavaScript setTimeout() even canNOT interrupt
>> a currently executing setTimeout() event!
>
>> If, like me, you hold this truth to be self-evident ..
>
> More general, setTimeOut() does not fire while script is being executed,
> as Javascript [in browsers and probably elsewhere] at present is both
> single threaded and uninteruptable.
>
> Otherwise it just fires after the script-execution ends.
>
> Even more so, setTimeout() only executes momentarily by calling a function
> or a code string.
>
> So not so self-evident.
>

Thanks. The penny is beginning to drop, and my foolish notion of 
separate execution contexts for an "event" -vs- "mainline" in JavaScript 
sees me looking like a numpty harkening to days gone by :-(

IIUYC, once an event is executing (e.g. a setTimeout() function or 
string) then it is just another chunk of inline JavaScript that can't 
(the focus() and inline event examples notwithstanding) or won't be 
interrupted until it's run. At which time the main loop will look to the 
event queue(s) and decide what to do.

Obviously, in my case, the Java Plugin changes the ball-game but that's 
why I love it and take advantage of it!

Cheers Richard Maher

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A JavaScript setTimeout() even canNOT interrupt a currently executing setTomeout() event! Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2013-05-15 22:44 +0800
  Re: A JavaScript setTimeout() even canNOT interrupt a currently executing setTomeout() event! markspace <markspace@nospam.nospam> - 2013-05-15 08:58 -0700
    Re: A JavaScript setTimeout() even canNOT interrupt a currently executing setTomeout() event! Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2013-05-16 19:14 +0800
      Re: A JavaScript setTimeout() even canNOT interrupt a currently executing setTomeout() event! markspace <markspace@nospam.nospam> - 2013-05-16 07:44 -0700
  Re: A JavaScript setTimeout() even canNOT interrupt a currently executing setTomeout() event! "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-05-16 00:01 +0200
    Re: A JavaScript setTimeout() even canNOT interrupt a currently executing setTomeout() event! Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2013-05-16 19:02 +0800

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