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Live ClojureScript Game Editor

ibdknox
Demos
YouTube
1 HN user recommended this demo1 month2012–2016 score 1
Years with an HN recommendation, 2007–2026

Cited as an early example of live coding applied beyond debugging, and as precursor to Light Table.

A five-minute demo of a live ClojureScript game editor by Chris Granger. It is based on Bret Victor's demo from the Inventing on Principle talk, with code changes reflected instantly in the running game.

“These are couple of good examples” (HN, 2012)

1 recommendations · 3 citations · Demos · intermediate · partly dated

4 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@revorad Mar 2012 Recommends
on HN thread Ask HN: How do you tone down your idea to something fesible?
I like interactive, but it seems to work well only if you can simulate the commandline well enough in the browser (like Codecademy does). If you do anything advanced, it has to be done really well. These are couple of good examples: [link] [this video]
Good example of advanced interactive coding done well.

Citations, criticism and jokes

@tluyben2 May 2012 Cites it
on HN thread Light Table reaches funding goal of $200k
Hmm. I work with Eclipse a lot, but this is not just visual. Maybe I use something different but the way of organizing your methods on screen and the actual live coding I don't have in Eclipse. We're not talking 'debug' here; we're talking live coding. Did you check videos like: [this video] If you can do that with Eclipse & Android, please tell me how because then I have been stupid (which is very possible: I haven't changed my toolchain in a while).
Shows live coding beyond debugging.
@azeirah Oct 2016 Cites it
on HN thread Show HN: Nightlight, an editor that runs inside Clojure projects
"Of course ..." is that really true though? From the very beginning, the very first demo, Chris Granger mentions that he got inspired by Bret Victor's Inventing on Principle demo. He mentions it in the first blog post as well :p No mentions of smalltalk Chris Granger's first video on LightTable: [this video] Chris Granger's first blog post on LightTable: [link]
First LightTable demo shows Bret Victor inspiration.

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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