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Re: To test empty array in perl

by nvivek (Vicar)
on Apr 27, 2010 at 04:19 UTC ( #837017=note: print w/ replies, xml ) Need Help??


in reply to To test empty array in perl

If you want to check whether the array is empty.You can do in the following ways.

print "Array isn't empty.Array Values:@array\n" if($array[0]); print "Array isn't empty.Array Values:@array\n" if($#array >= 0); print "Array isn't empty.Array Values:@array\n" if(@array);


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Re^2: To test empty array in perl
by nagalenoj (Friar) on Apr 27, 2010 at 04:44 UTC
    print "Array isn't empty.Array Values:@array\n" if($array[0]);

    This won't tell you whether the array is empty.

    What happens when the first index of array has undef or 0.?

    # my @array = (0, undef, 1, 2, 3); my @array = (undef, undef, 1, 2, 3); print "Array isn't empty.Array Values:@array\n" if($array[0]);

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