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Re^4: A more concise way to map the contents of an array.

by Amblikai (Beadle)
on Dec 30, 2012 at 13:59 UTC ( #1010922=note: print w/ replies, xml ) Need Help??


in reply to Re^3: A more concise way to map the contents of an array.
in thread A more concise way to map the contents of an array.

So just to be clear, if i double negate something, i'll lose the original "value" and be left with the pure boolean representation of the data? That could prove useful!

Thanks again for your reply!


Comment on Re^4: A more concise way to map the contents of an array.
Re^5: A more concise way to map the contents of an array.
by LanX (Canon) on Dec 30, 2012 at 14:03 UTC
    Yes ... negating means evaluating in boolean context!

    (well "pure" is a risky adjective in the sphere of Perl's DWIM flexibility ... ;)

    Anyway if this approach ever fails it certainly is a bug!

    EDIT:

    IMHO people prefer using 0 for false because it's easier to print and read than an empty string. But technically this is not necessary.

    Cheers Rolf

    ) lets say "well-defined"!

      Ok, thanks again for your help!

Re^5: A more concise way to map the contents of an array.
by Athanasius (Monsignor) on Dec 30, 2012 at 14:42 UTC

      Thanks for the welcome and the info!

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