Course of Raku / Advanced / Subroutines / Anonymous subroutines / Exercises / Sum with the & sigil

Solution: Sum with the & sigil

Here is a possible solution to the task.

Code

my &add = -> $a, $b {
    $a + $b;
};

say add(2, 3);

🦋 You can find the source code in the file sum-with-sigil.raku.

Output

5

Comments

1. The pointy block lists two parameters, -> $a, $b, so the anonymous subroutine takes two arguments.

2. Because the variable is declared with the & sigil, it can be called as add(2, 3) exactly like a named subroutine — no sigil at the call site — giving 5.

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