KevinR
Veteran
Jan 8, 2009, 9:38 AM
Views: 474
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i understand the following
$ is for scalar
@ is for array
what's the difference between
@ary[0]
and
$ary[0]
The difference is the first one is in list context and the second one is in scalar context. The first one is also a deprecated form of the second one from earlier versions of perl. The first one can return many values:
@list = @array[1,4,3,2,6];
the second one is a scalar and can return only one value:
$value = $array[0];
Using the proper context is important as it affects the value returned depending on what you are doing or what function you are using to process a list or scalar.
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(This post was edited by KevinR on Jan 8, 2009, 9:40 AM)
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