Friday, September 06, 2013

Interesting fact about finding perl array size

Recently, I came across a problem with Perl array. I was assuming that these three methods generate same output for finding array size, but I am WRONG :

my @newArray = (2);
print scalar @newArray;   #1
print $#newArray; #2
print @newArray; #3


First and third give me proper values, but second gave me 0 size. So be careful, while using it. I would recommend using "scalar @newArray".

Here is some explanation on it : http://stackoverflow.com/questions/7406807/find-size-of-array-in-perl

Cheers.



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