Format an integer with commas

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Format an integer with commas to make it more readable

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  1. def number_with_delimiter(number, delimiter=",")
  2. number.to_s.gsub(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1#{delimiter}")
  3. end
  5. a=1024
  6. p number_with_delimiter(a)

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