Try Ruby is a interactive shell that quickly and whimsically teaches the Ruby programming language. Originally _why's idea, it has been recreated from the ground up by Rubyists who have a passion for Ruby and for teaching their fellow (wo)man how to program.
Lesson ticket.sort! is not working
Error: NameError: undefined local variable or method 'ticket' for main: Object
Lesson poem['toast'] = 'honeydew' doesn't change strings