Dne 29.8.2013 16:43, Roman Neuhauser napsal(a):
so let's say we have this code:def parse input, options Parser.new(options['strict']).parse(input) end you have no idea what type `options` is, all you know (actually hope for) is it has a `[](key)` method. looking at it from the other side, how come you don't mind objects with `[](key)`? they are *not* Hash, they have all kinds of "unexpected" behaviors, so really, what's the difference?
I do mind them if they behave too differently from hashes (or arrays -- depends on what kind of [] "API" the object presents). This includes behavior of [] when the key is not present.
If they quack enough like a hash, I am happy, as I can mostly forget the differences and thinking about the code becomes easier.
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