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What is the difference between $array[1] and @array[1]?by faq_monk (Initiate) |
on Oct 08, 1999 at 00:20 UTC ( [id://608]=perlfaq nodetype: print w/replies, xml ) | Need Help?? |
Current Perl documentation can be found at perldoc.perl.org. Here is our local, out-dated (pre-5.6) version: The former is a scalar value, the latter an array slice, which makes it a list with one (scalar) value. You should use $ when you want a scalar value (most of the time) and @ when you want a list with one scalar value in it (very, very rarely; nearly never, in fact). Sometimes it doesn't make a difference, but sometimes it does. For example, compare:
$good[0] = `some program that outputs several lines`; with
@bad[0] = `same program that outputs several lines`; The -w flag will warn you about these matters.
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