unit sub construct is a handy way to make the rest of the file the body of the function! When used with
MAIN, it allows getting rid of the curly braces that embrace virtually the whole file, as well as of unnecessary indentation.
The usage of
unit sub is demonstrated in the following example of a program.
unit sub MAIN($a, $b); my $sum = $a + $b; say "The sum of $a and $b is $sum.";
MAIN function is the only function in this file. If this is the case for your program too, consider using
unit sub MAIN as shown above.
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