Perl 6 Deep Dive

The upto operator

The ^ operator is called the upto operator. It creates a range from 0 to the integer value of the operand:

say ^5;my $right = 5;say ^$right;

In the preceding code, Perl 6 prints the range in the form of ^5.

Let's use the range in a loop:

say $_ for ^3;

This one-line program prints 0, 1, and 2. Thus, the range does not include its upper boundary.