gistfile1.builder

files = (Dir["{app,config,db/migrate,lib,test}/**/*.rb"] + Dir['app/views/**/*.{rhtml,rxml,erb,builder,haml}']).sort
files -= ['config/boot.rb']

for a, b in list
  unless b['found'].empty?
    # ...
  end
end

def word_wrap(line_width = 78)
  self.split("\n").collect do |line|
    line.length > line_width ? line.gsub(/(.{1,#{line_width}})(\s+|$)/, "\\1\n").strip : line
  end * "\n"
end

[1, 2, 3] * 3 == [1, 2, 3, 1, 2, 3, 1, 2, 3]

does = is = { true => 'Yes', false => 'No' }
does[10 == 50]                       # => "No"
is[10 > 5]                           # => "Yes"

def is_odd(x)
  x % 2 != 0
end

def contains_digits
  self[/\d/] ? true : false
end

h = { :age => 10 }
h[:name].downcase                         # ERROR
h[:name].downcase rescue "No name"        # => "No name"