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yoggy/overriding-backticks-test.rb

Last active November 29, 2017 05:42
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Rubyではバッククォートをオーバーライドできてしまうという個人的な驚き
Raw
overriding-backticks-test.rb
#!/usr/bin/ruby
def `(str)
'Wed Nov 29 12:34:56 JST 2017'
end
puts `date`
Raw
sample.txt
$ date
Wed Nov 29 14:37:21 JST 2017
$ ./overriding-backticks-test.rb
Wed Nov 29 12:34:56 JST 2017
$ ./overriding-backticks-test.rb
Wed Nov 29 12:34:56 JST 2017
$ ./overriding-backticks-test.rb
Wed Nov 29 12:34:56 JST 2017
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