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brew install rbenv
brew install ruby-build
brew install rbenv-vars
brew install readline
brew install ctags
echo 'eval "$(rbenv init - --no-rehash)"' >> ~/.bash_profile
exec $SHELL -i # reload the shell
CONFIGURE_OPTS="--disable-install-doc --with-readline-dir=$(brew --prefix readline)" rbenv install 1.9.3-p194
rbenv global 1.9.3-p194
gem install bundler rbenv-rehash git-up hitch gem-browse gem-ctags cheat awesome_print pry

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require 'benchmark'

ITERATIONS = 1000000

Benchmark.bm(10) do |bench|
  0.upto(40) do |n|
    bench.report("chars: #{n}") do
      string = "n"*n
      ITERATIONS.times do
        string + 'x'