Format Number --add comma to seperate thousands

Example usage: amount = 1333444.1 print(format_num(amount,2)) print(format_num(amount,-2,"US$")) amount = -22333444.5634 print(format_num(amount,2,"$")) print(format_num(amount,2,"$","()")) print(format_num(amount,3,"$","NEG "))
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Code for Snippet:

                
-- add comma to separate thousands
-- 
function comma_value(amount)
  local formatted = amount
  while true do  
    formatted, k = string.gsub(formatted, "^(-?%d+)(%d%d%d)", '%1,%2')
    if (k==0) then
      break
    end
  end
  return formatted
end
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Times Viewed: 7
Date Added: 2018-01-09 04:45:35
Last Modified: 2018-01-10 09:54:13

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