I'm not sure that shift and unshift are so amazingly unique. After all, it's possible to simulate their behaviour with push and pop

Hmm, after tinkering quickly with some code, this is all I could come up with.

#!/usr/bin/perl -w

my @data = qw/1 2 3 4 5/;
print "Data is " . join ( ":", @data ) . "\n";

@data = reverse @data;
my $foo = pop @data;
@data = reverse @data;
print "Data is " . join ( ":", @data ) . "\n";

@data = reverse @data;
push ( @data, 17 );
@data = reverse @data;
print "Data is " . join ( ":", @data ) . "\n";

[download]

So maybe shift and unshift are useful after all. Is there an easier way to simulate the behaviour that I've missed?

--t. alex
but my friends call me T.

In reply to Re: Dealing with Lists and Arrays by talexb
in thread Dealing with Lists and Arrays by @rocks

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