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  1. str = "1 - hello world 1234 abc 5678 def"
  2. puts str[/\d+\D+(\d+\s*\w+)/, 1]
  3. puts str[/\d+\D+\K\d+\s*\w+/]
Success #stdin #stdout 0.01s 6304KB
comments (?)
stdin 
Standard input is empty
stdout 
1234 abc
1234 abc
https://ideone.com/MhYrNz
language:
Ruby (ruby 2.5.5)
created:
3 years ago
visibility:
public

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