Add commas to a big integer value : Number Literal « Number « Ruby






  1. Ruby
  2. Number
  3. Number Literal

Add commas to a big integer value



def commas(x)
  str = x.to_s.reverse
  str.gsub!("([0-9]{3})","\\1,")
  str.gsub(",$","").reverse
end

puts commas(123)        # "123"
puts commas(1234)       # "1,234"
puts commas(12345)      # "12,435"
puts commas(123456)     # "123,456"
puts commas(1234567)    # "1,234,567"








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