Re: [Pharo-users] Can it do this way ?

[Roelof Wobben via Pharo-users]

--- Begin Message --- Yep, I know that isValidIsbn is the method that must output if a isbn is valid or not.

What I want to do is take the first 9 characters out so I can convert them to a array of numbers where I can do the calculation on. And take out the last char so I can seperate test if that is a valid char. So between the 0 and 9 or a X

I do not think I would have do all the checks in that only method because it would be a very big method then.

but if I understand you well  also the test if a string is empty should be called from the isValidIsbn method or even checked there.

Roelof

--- End Message ---