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  1. puts 'test@gmail.com'.gsub(/\G[^@](?=[^@]*@)/, '*')
Success #stdin #stdout 0.01s 6300KB
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Standard input is empty
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****@gmail.com
https://ideone.com/F6Q8fH
language:
Ruby (ruby 2.5.5)
created:
4 years ago
visibility:
secret

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