How do use a sort on a hash in a for

The neater way:

for %h.sort -> (:key($name), :value($num)) {

This destructures the Pair by calling .key and .value on it, and then binding them to $name and $num respectively.

Perhaps a shorter, more understandable version:

for %h.sort -> (:$key, :$value) {

which would create variables with the same names the methods got called with.