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using join in perl

+1 vote
33 views

I am facing some difficulty using join to display the array elements. Here is the code snippet

[code]use strict;use warnings
my @fruits = qw/apple mango orange banana guava/;
#print '[', join '][', @fruits;#print ']';
print '[', join '][', @fruits, ']';best,
[/code]

[output]
      [apple][mango][orange][banana][guava][]
[/output]

How can I make the output to eliminate the last empty square brackets [] using a single print statement. I used two print statements as shown in the code snippet above (#lines are commented out). Any help is greatly appreciated.

posted Aug 4, 2013 by Jai Prakash

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2 Answers

0 votes
[code] use strict;use warnings;
my @fruits = qw/apple mango orange banana guava/; 
#print '[', join '][', @fruits;#print ']'; 
print '[', join '][', @fruits, ']';
print '[', ( join '][', @fruits ), ']'; 
Please note the placement of the brackets.  best, 
[/code]
[output] 
[apple][mango][orange][banana][guava][]
[/output]
answer Aug 4, 2013 by Salil Agrawal
–1 vote

Limit what join acts on by using parenthesis.

 print '[', join ( '][', @fruits ), ']';

This keeps your closing bracket from being part of the list that join is acting upon.

answer Aug 4, 2013 by Amit Parthsarthi
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