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5,062 PointsQuestion about balance method
Is it better to create the balance method or to simply update the balance as we add each transaction?
1 Answer
J Scott Erickson
11,883 PointsI would have the actions ( deposit / withdraw ) update the balance themselves. Although you could have a method like so.
def balance( amount, action )
case action
when 'deposit'
@balance = @balance + amount
when 'withdraw'
@balance = @balance - amount
end
end
This is a pretty rudimentary implementation. There would be all sorts of things you might want to do here like validate that amount is a fixnum with two decimals, make sure that 'action' is either withdraw or deposit.