Re^2: greping thru a hash of arrays

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Re^3: greping thru a hash of arrays by linuxer (Curate) on May 20, 2008 at 21:15 UTC
`grep /$_/, [ @{$tbl{$i}} ]` [download] means: Dereference the array-Ref in $tbl{$i}, make a reference to an anonymous array ( [ ] ) from the resulting list and grep through a list with a single item: the single reference to the anonymous array. `@tbl{$i}` is btw. wrong, see this example : `$perl perl use strict; use warnings; my %hash; $hash{a} = [ 1,2 ]; print "@hash{a}", $/; Scalar value @hash{a} better written as $hash{a} at - line 7.` [download] edit: several updates/corrections due to some misleading thoughts while typing too fast	[reply] [d/l] [select]
Re^3: greping thru a hash of arrays by pc88mxer (Vicar) on May 20, 2008 at 21:19 UTC
There were a few errors. As linuxer pointed out, the second argument to `grep` should not be an array-ref. The second through last arguments are the list of items to grep through. Also, instead of `@tbl{$i}` you want to use `@{$tbl{$i}}`.	[reply] [d/l] [select]