It depends on how much time you can spend on the task. If you're allowed to write proper documentation about architecture and requirements that is probably better. If you're just drive-by fixing the code, then good comments are a lot better than nothing.
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It depends on how much time you can spend on the task. If you're allowed to write proper documentation about architecture and requirements that is probably better. If you're just drive-by fixing the code, then good comments are a lot better than nothing.