[erlang-questions] [ANN] TryErl: run Erlang code online

Ivan Uemlianin ivan@REDACTED
Wed Feb 11 13:29:43 CET 2015

The different compilation options are especially nice!  Thanks!


On 11/02/2015 12:24, Сергей Прохоров wrote:
> I'm glad to announce a service, which allow to run arbitrary Erlang 
> code from your browser. For now it is there:
> http://tryerl.seriyps.ru/
> How it works
> Each request is handled by Cowboy web server, which launches new 
> Erlang VM instance per request inside lightweight linux container, 
> based on https://github.com/thestinger/playpen. There are restrictions 
> on networking, memory and execution time, but nothing else.
> What does it have
> As you already heard, there is erlang code evaluation, but also 
> compilation to several intermediate formats, like core erlang, macros 
> expanding, beam and erlang assemblers and so on. And all this can be 
> launched under any erlang release version (for now it's only the 
> latter 8, but I can add more by demand).
> Of course, there is 'pastebin' functionality, so you can save and 
> share snippet with somebody else.
> Possible use-cases:
> * Explore code compatibility with all Erlang releases
> * Share runnable erlang snippet with somebody
> * Try to launch some dangerous code
> * Quickly explore how your code is compiled to erlang asm instructions
> * Maybe, for some online studying / webinars. Students are don't even 
> need to install erlang on their computers
> * In blog posts / articles / documentation - to make code snippets 
> more interactive
> Idea was borrowed from https://play.rust-lang.org/.
> P.S.: it will be great, if you suggest some funny / interesting code 
> snippets for «Examples» section.
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Ivan A. Uemlianin PhD
Speech Technology Research and Development


                         festina lente

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