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shouichi/delete_vs_minus.rb

Created January 5, 2011 09:32
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delete_vs_minus.rb
#!/usr/bin/env ruby
a = [1,2,3,4]
a.each { |x| a.delete(x) }
#=> [2,4]
a = [1,2,3,4]
a.each { |x| a -= [x] }
#=> []
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