Ruby Cheatsheet

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Operators

** !  ~  *  /  %  +  -  &
<< >> |  ^  >  >= <  <= <=>
|| != =~ !~ && += -= == ===
.. ... not and or

Keywords

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
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