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require 'rubygems'
require 'tach'
Tach.meter(10_000) do
tach('merge') do
default = { :a => 1, :b => 2 }
override = { :b => 3, :c => 4 }
override = default.merge(override)
end
tach('loop') do
default = { :a => 1, :b => 2 }
override = { :b => 3, :c => 4 }
for key, value in default
override[key] ||= default[key]
end
override
end
end
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