RubyFiddle

Sample Riddles

Have more? Send them along!

• 99 Bottles of Beer
• instance variable get
• Using Yield to log "stuff"

About Ruby Fiddle

For Ruby Off Rails

I wanted a way for people to experience some ruby in the browser, and have a platform that we can send cool ruby scripts to each other.

Fork it!

What?

In case you're not a githubber, forking is a way that you can build upon someone else's cool code.

So you'll Fork someone's code, and then be able to update it from that point on.

Security Concerns?

They say being pwned is a right of passage for an app. RubyFiddle grew up a little bit on June 14, 2012.

We execute in a restricted environment on Heroku, but system calls and even ruby classes would still cause problems in ways I didn't anticipate.

• Delete all files
• while { fork }
• Read the /etc/passwd

The downside is that I had to disable cool features of ruby, like re-opening a class (String)