On 2013-11-06 20:21, Dave Angel wrote:

The plus operator doesn't append to the list; it makes a new one.
Doesn't meet spec.

Right.
It seems then that one could be critical of the assignment in that it is requiring a function that has side effects which is something that should be discouraged. To be fair, the name of the function ('transform') does suggest that it will change something (but does not suggest that anything will be returned.)
Comments?

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