String functions (length, lc, uc, index)

---

• length STRING - number of characters
• lc STRING - lower case
• uc STRING - upper case
• lcfirst STRING - lower case
• ucfirst STRING - upper case

examples/scalars/length.pl

use 5.010;
use strict;
use warnings;

my $name = 'Foo Bar';
say length $name;                 # 7
say length "Hello World!\n";      # 13
say length 19;                    # 2