Programming-Idioms

Edit summary for version 30 by :
[Perl] Added the documentation url, and add “$” in front of variables, as you would in perl.

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2016-01-01, 01:55:46

2016-01-01, 19:58:01

Idiom #38 Extract a substring

Find substring t consisting in characters i (included) to j (excluded) of string s.
(character indexes start at 0 unless specified otherwise)

Find substring t consisting in characters i (included) to j (excluded) of string s.
(character indexes start at 0 unless specified otherwise)

my $chunk = substr("now is the time", i, j);

my $chunk = substr("now is the time", $i, $j);

Perl is 0-based: i=3 would start at the 4th character.

Perl is 0-based: i=3 would start at the 4th character.

http://perldoc.perl.org/functions/substr.html

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