Ruby
Get flash to fully experience Pearltrees
alias and BEGIN begin break case class def defined? do else elsif END end ensure false for if in module next nil not or redo rescue retry return self super then true undef unless until when while yield 'no interpolation' "#{interpolation}, and backslashes\n" %q(no interpolation) %Q(interpolation and backslashes) %(interpolation and backslashes) `echo command interpretation with interpolation and backslashes` %x(echo command interpretation with interpolation and backslashes)
Ruby QuickRef
Documentation
An interactive tutorial that lets you try out Ruby right in your browser. This 15-minute tutorial is aimed at beginners who want to get a feeling of the language. Ruby Koans