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Re^5: If you believe in Lists in Scalar Context, Clap your Hands

by ysth (Canon)
on Oct 28, 2008 at 07:55 UTC ( [id://719928]=note: print w/replies, xml ) Need Help??


in reply to Re^4: If you believe in Lists in Scalar Context, Clap your Hands
in thread If you believe in Lists in Scalar Context, Clap your Hands

All models are known-flawed, though. But certainly in any kind of learning environment, the particular learners need to be taken into account. I happen to think that anyone willing to debate lists in scalar context falls on the thirsty side. That or the argument for argument's sake side. (Don't look at me like that.)

Isn't much of learning the challenging of perception/preconception?

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Re^6: If you believe in Lists in Scalar Context, Clap your Hands
by mr_mischief (Monsignor) on Oct 28, 2008 at 18:25 UTC
    Yes, much of learning is challenging the perception and preconception.

    This is much like those firmly in the "there's no such thing" camp seem to preconceive that everyone exposed to Perl understands "operand", "operator", "side effect", "right associative", the difference in CS between "assigns" and "returns" and the difference of either from the mathematical "yields" (which are not so different in e.g. Lisp as in Perl), and more.

    The "no such thing" camp can easily claim conceptual simplicity when they assume an existing foundation upon which those three concepts that keep getting tossed around are based. Three concepts on top of three or four other concepts one must explain first totals more like six or seven concepts.

    Please don't assume that I don't understand those terms based on the fact that I say some people don't. That assumption in these discussions has become quite annoying.

    Most of the conceptual baggage in the "rules and exceptions" abstraction come after the rule about the last element being returned. Most of the conceptual baggage for the "no such thing" abstraction that more closely resembles what actually happens inside the interpreter comes beforehand. When someone wants to learn one new thing, teaching them six or seven to take their place is not always the best way to handle that.

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