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

by chromatic (Archbishop)
on Oct 25, 2008 at 10:21 UTC ( #719484=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

my @x = chomp <DATA>;

Bingo, @x is gets a one-element list -- or at least, it's a list in list context and a scalar in scalar context. Tricky! Here's a mind-bender. What's this?

1, 2, 3

It could be a three-element list, in list context, or it could be a scalar and two void expressions (which get optimized away), in scalar context. In void context, it could be nothing.

Update: Reworded one sentence.


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Re^6: If you believe in Lists in Scalar Context, Clap your Hands
by jwkrahn (Monsignor) on Oct 25, 2008 at 14:35 UTC

    So, then, scalar also returns a list in list context?   (BTW, @x is an array, not a one element list.)

      So, then, [scalar[ also returns a list in list context?

      Yes, a one-element list.

      (BTW, @x is an array, not a one element list.)

      You're right. I misworded that sentence and have corrected it.

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