Selecting Elements from Lists in Perl

The list notation in Perl is identical to that for arrays. You can extract an element from an array by appending square brackets to the list and giving one or more indices −

Example

 Live Demo

#!/usr/bin/perl
$var = (5,4,3,2,1)[4];
print "value of var = $var\n"

Output

This will produce the following result −

value of var = 1

Similarly, we can extract slices, although without the requirement for a leading @ character −

Example

 Live Demo

#!/usr/bin/perl
@list = (5,4,3,2,1)[1..3];
print "Value of list = @list\n";

Output

This will produce the following result −

Value of list = 4 3 2

Mohd Mohtashim

Published on 29-Nov-2019 05:31:38

• Related Questions & Answers
• Matching Boundaries & Selecting Alternatives in Perl
• Passing Lists to Subroutines in Perl
• Selecting Sibling Elements with CSS
• Selecting Child Elements with CSS
• Smallest Range Covering Elements from K Lists in C++
• Replacing Array Elements in Perl
• Accessing Hash Elements in Perl
• Accessing Array Elements in Perl
• Slicing Array Elements in Perl
• Selecting Random Result from MySQL?
• Get positive elements from given list of lists in Python
• Find smallest range containing elements from k lists in C++
• Program to interleave list elements from two linked lists in Python
• Selecting random entry from MySQL Database?
• Adding two Python lists elements