Runtime evaluation

Any syntactically valid sequence of statements may be run, and the snippet to be run can see its outer lexical scope at the point of the eval:

use MONKEY-SEE-NO-EVAL;

my ($a, $b) = (-5, 7);
my $ans = EVAL 'abs($a * $b)';  # => 35

Unlike in Perl 5, eval in Raku only compiles and executes the string, but does not trap exceptions. You must say try eval to get that behavior (or supply a CATCH block within the text to be evaluated).