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Comment by jsjohnst | Hacker News Reader

It existed in AS3 too. Wasn't widely known to my knowledge though.

Thank you - confirmed. I just dug up a copy of Flash CS6 and tried this:

  var val : String = "foo";
  var foo : XML = <foo><bar prop={val} /></foo>;

...and it worked. I swear this wasn't documented anywhere. That said, I just googled a few Flex examples (I never used Flex) and it seems to be common there, so I guess that explains why at least someone knew it existed!

It's documented. I used to be very fluent in the AS3LR, and I found it in a minute or two here: http://help.adobe.com/en_US/FlashPlatform/reference/actionsc...

The formal language specification came fairly late in AS3's useful life, but it also describes the syntax: http://help.adobe.com/livedocs/specs/actionscript/3/as3_spec...

Ah, thank you for these. I skimmed the documentation about AS3's XML support and didn't see it there, and I'm not sure "operators" would be a place I would've looked!

I don't know if this would've been a super useful feature for me a decade ago, but it's nice to know it was there anyway.

That's possibly why I knew about it then (for a brief period, I did Flex work ten years ago).

I used to do Flex a long time ago, and I love how the frontend dev world is finally catching up to Flash from the late naughties.

Flash won. The world of Internet development is slowly being remade in Flex's image.

That Adobe abandoned he technology rather that retooling it to target HTML5 is a strategic blunder up there with... I can't actually work out an equivalent.

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