In the previous chapters, we discussed some examples interleaved with the Perl 6 mechanics that make them work. Here I want to summarize and deepen the Perl 6 knowledge that we’ve touched on so far, removed from the original examples.
8.1 Variables and Scoping
In Perl 6, variable names are made of a sigil, $, @, %, or &, followed by an identifier. The sigil implies a type constraint, where $ is the most general one (no restriction by default), @ is for arrays, % for hashes (associative arrays/maps), and & for code objects.
Identifiers can contain - and ' characters, as long as the character ...
