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Comment by sillysaurus3 | Hacker News Reader

Note that https://news.ycombinator.com/front?day=2007-02-18 doesn't let you navigate backwards, but https://news.ycombinator.com/front?day=2006-10-09 is the first day.

Out of curiosity, for the date rendering, did you xdef racket's date libraries or implement your own date algorithms in arc?

I guess you could've also shelled out to `date -r <timestamp>` which would get the feature done in about ten seconds.

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> 2007-02-18 doesn't let you navigate backwards

Yes, and we specifically left it as an exercise for the pokey reader to figure out why.

Arc does its own date stuff. We extended it a bit to be able to print things like "x months ago". Edit: and "Feb 31, 2017".

Just curious: do you (as in Y combinator) use Arc for anything else or is it a "hobby language" for HN?

All of YC's original investment software was written in Arc, though it has been gradually factored out into other systems.

We use it for a browser extension that helps a lot with moderation work. And for general experiments. If I do something more ambitiously new it will probably be in Arc.

We use it for a browser extension that helps a lot with moderation work.

Oho, so Arc does compile to JS now.

You gonna release the compiler or what? (Sometime this decade.)

Probably started logging front page on that day.

No, we only started that in Nov 2014. Before then, the /front pages sort things by points because that's all the data we have.

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