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Feature Request: Explanation with examples of map-into #442
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mmh it's a destructive operation. Maybe we can explain it but not advertise it, preferring non-destructive operations. |
That sounds like the functional thing to do. |
Isn't push and pop a destructive operation or should we avoid adding more to the cookbook?
Oh just read your reply more carefully. Sorry. Yes, I'd like to just briefly explain it so that it can be documented. I agree with not advertising it if we don't want to encourage operations/programming that involves using lots of mutation. |
http://www.lispworks.com/documentation/HyperSpec/Body/f_map_in.htm
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