in reply to Re^2: How do I output each Perl array element sourrounded in quotes?
in thread How do I output each Perl array element sourrounded in quotes?

Your solution adds double quotes around the empty elements.

Try this:

print join ' ', map {qq("$_")} grep{$_} ('a', 'b', '', 'd', '', 'f');

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Re^4: How do I output each Perl array element sourrounded in quotes?
by AnomalousMonk (Archbishop) on Apr 18, 2009 at 21:32 UTC
    But grepping on  $_ filters out the string  '0' or a numeric value of 0. 

    >perl -wMstrict -le
"my @Array = ('A', undef, 'B', '0', 'C', 0);
 print join ' ', map {qq(\"$_\")} grep { $_ } @Array;
"
"A" "B" "C"

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    Grepping on length will allow handling of  '0' or 0, but is unhappy with an undefined value (if this should be an issue). 

    >perl -wMstrict -le
"my @Array = ('A', undef, 'B', '0', 'C', 0);
 print join ' ', map {qq(\"$_\")} grep { length } @Array;
"
Use of uninitialized value in length at -e line 1.
"A" "B" "0" "C" "0"

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    Grepping on both defined and length handles a broad range of variations. 
    >perl -wMstrict -le
"my @Array = ('A', undef, 'B', '0', 'C', 0);
 print join ' ', map {qq(\"$_\")} grep {defined and length} @Array;
"
"A" "B" "0" "C" "0"

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