Hey does anyone have any ideas on how I can refactor these methods to get rid of the duplication. I’m using Ruby. The first, third and fourth lines of both methods do the same thing. I’m having trouble for some reason because the second argument of both methods are of different types (or rather they represent different types of values).

I was think of using procs and having the different code be a block, but I couldn’t find a solution.

Any ideas would be great.

def buy_in_cash(symbol, cash_amt) # second argument is cash   market_price = @exchange.price_by_symbol(symbol)   coin_amt = cash_to_coin(cash_amt, market_price) # different   withdraw_cash(cash_amt)   @transactions << Transaction.new(symbol, coin_amt, market_price) end  def buy_in_coin(symbol, coin_amt) # here second argument is coin   market_price = @exchange.price_by_symbol(symbol)   cash_amt = coin_to_cash(coin_amt, market_price) # different   withdraw_cash(cash_amt)   @transactions << Transaction.new(symbol, coin_amt, market_price) end