Few days ago some people noticed that the online AS3LCR was not available anymore (FaceBook link)
eg. this URL
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/
an issue in the Adobe tracker was created too
https://tracker.adobe.com/#/view/FP-4198775
it is all fixed now, at worst, refresh your browser cache
Also a little reminder that this kind of documentation is extremely precious to any ActionScript developers, and not only you would want to vote when this doc is down or not available, here the main URL
first, you have the main documentation portal
ActionScript reference and documentation
https://www.adobe.com/devnet/actionscript/documentation.html
where you can also download a zip file of those HTML pages
eg. http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/PlatformASR_Final_en-us.zip
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second, you have the current AS3LCR
https://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/
as you can see it cover till FP/AIR 28 and last updated
Mon Dec 18 2017, 12:45 PM -08:00
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third, you have the BETA AS3LCR
https://help.adobe.com/en_US/FlashPlatform/beta/reference/actionscript/3/
that cover ill the latest FP/AIR 29 BETA
Release Notes: 07 February 2018
Latest changes to this version of the Beta ActionScript Reference for the Flash Platform
Content added in this release
This Beta version of the ActionScript 3.0 Reference for the Flash Platform
contains preview content for Flash Player 29.0 and AIR 29.0.
The content for all other products is from previously released versions.
Tue Feb 6 2018, 07:22 AM -08:00
You may have had other older links like
http://livedocs.adobe.com/flex/3/langref/index.html
this one does not work anymore and returns a 404
another older link is this one
http://help.adobe.com/en_US/AS3LCR/Flash_10.0/
but it actually redirect to https://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/
You may also be interested in an open source project later on, the same way we shared
on Github the ActionScript 3 Language Specification
(which can be originally found here http://help.adobe.com/livedocs/specs/actionscript/3/wwhelp/wwhimpl/js/html/wwhelp.htm)
It would be nice to also produce our own open source "community edition" of the AS3LCR,
probably in the same way that the Redtamarin documentation is generated (eg. heavily customized asdoc).
