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Fix Account example #4
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The account example's `addFunds` was broken (you couldn't add funds to an empty account), this fixes it. I also got a bit (too?) creative and added in an `ErrorType` to show an excellent use of `enum` (to throw and catch errors, which could warrant another section perhaps?)
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Thanks! Indeed, I had totally forgotten about the ErrorType, obviously a prime example of enum usage. Will fix that. I decided to use the Bool return instead of |
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Sounds good, this article is a pretty good read that shows some more uses of |
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The account example's
addFundswas broken (you couldn't add funds to an empty account), this fixes it. I also got a bit (too?) creative and added in anErrorTypeto show an excellent use ofenum(to throw and catch errors, which could warrant another section perhaps?)