Mega Code Archive

 

Categories / Ruby / Number

 

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"