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


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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 ( [id://719484]=note: print w/replies, xml )

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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 (Abbot) 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.)	[reply] [d/l]
Re^7: If you believe in Lists in Scalar Context, Clap your Hands by chromatic (Archbishop) on Oct 25, 2008 at 18:41 UTC
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.	[reply] [d/l]

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