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  1. s = "abcdef"
  2. w = "ef"
  3. t = s.sub(/#{w}\z/, "")
  4.  
  5. puts t
Success #stdin #stdout 0.01s 5888KB
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stdin
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Standard input is empty
stdout
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abcd
https://ideone.com/LyruOK
language:
Ruby (ruby 2.5.5)
created:
6 years ago
visibility:
public

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