Partial function application: Difference between revisions

The <tt>*+2</tt> is also a form of partial application in Perl&nbsp;6Raku. In this case we partially apply the <tt>infix:<+></tt> function with a second argument of 2. That is, the star (known as the "whatever" star) indicates which argument <em>not</em> to apply. In contrast to languages that keep some arguments unbound by leaving holes, the explicit star in Perl&nbsp;6Raku allows us to avoid syntactic ambiguity in whether to expect a term or an infix operator; such self-clocking code contributes to better error messages when things go wrong.