Jenda Krynicky wrote:
From: "Bill Harpley" <bill.harp...@ericsson.com>
Suppose I have a multidimensional array of the form:
@array[names][values]
For example, I have a list of database field names and the value
associated with each one.
If this was a single dimensional array called @list, I could create an
output line in CSV format by using the 'join' command like this:
$line= join ',' , @list;
Is there a simple way to just take a single column of a multidimensional
array and use 'join' to create a CSV output line?
Must I copy the desired column into a single dimensional array first?
This is the most obvious way but if anybody can think of a neater trick
I would be delighted to know !
I believe you are looking for
$line = join ',', map $_[$column_index], @array;
The map() selects the right item from each row and creates a list of
the values in the column.
@array contains array references so that *should* be:
$line = join ',', map $_->[$column_index], @array;
John
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