Hi,
Nilay Puri, Noida wrote:
>Hi all,
>
>Can any one walk me thru this piece of code ::
>
>while(<STDIN>)
>{
> chomp ;
> $isbn =(split(/^_/, $_))[0] ; --- not able to understand what is
>being accessed (......)[0]
That's the first element of the array returned by split (you can access array elements
like this:
@array = (1,2,3);
$number = $array[0]
print $number;
This prints "1".
> unless ($KEYS{$isbn} ) ---- isbn is a scalar variable, how keys
>wok on it ?
Obviously, there is a hash named %KEYS, where each key is an isbn number.
HTH,
Jan
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